diff --git a/README.md b/README.md
index fa0237d..d1eb93b 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
 # OpenBootCampPython
 Repository to store Python boot camp.
+
+* Ejercicio 10.A: En este ejercicio tenéis que crear una lista de RadioButton que muestre la opción que se ha seleccionado y que contenga un botón de reinicio para que deje todo como al principio.
+Al principio no tiene que haber una opción seleccionada.
diff --git a/src/exerciseten/radiobutton.py b/src/exerciseten/radiobutton.py
new file mode 100644
index 0000000..ba90e43
--- /dev/null
+++ b/src/exerciseten/radiobutton.py
@@ -0,0 +1,115 @@
+import tkinter as tk
+
+
+class Application:
+    """Conceptual class for GUI application
+    :param master: main window of an application, default to None
+    :type master: tkinter.Tk
+    """
+
+    def __init__(self, master: tk.Tk = None):
+        """Constructor method
+        """
+        # Parent setting
+        # # Size of the window
+        master.geometry('420x420')
+
+        # # Title of the window
+        master.title('Ejercicio 10.A')
+
+        # # Max and min window size
+        master.maxsize(width=400, height=400)
+        master.minsize(width=220, height=220)
+
+        # Variable
+        self._rbv = tk.StringVar(value=' ')
+
+        # Widgets
+        self._rb1 = tk.Radiobutton()
+        self._rb2 = tk.Radiobutton()
+        self._rb3 = tk.Radiobutton()
+        self._bt = tk.Button()
+        self._lb = tk.Label()
+
+        # Frame
+        # # Init main frame
+        self._main = tk.Frame(master=master, height=420, width=420)
+        self._main.grid_propagate(True)
+        self._main.pack(fill='both', expand=True)
+        self._main.rowconfigure(index=0, weight=420)
+        self._main.columnconfigure(index=0, weight=420)
+
+        # # Init button frame
+        self._fb = tk.Frame(master=self._main, height=1, width=1)
+        self._fb.pack(side='bottom', expand=False)
+        self._fb.rowconfigure(index=0, weight=1)
+        self._fb.columnconfigure(index=0, weight=1)
+
+        # # Init radio buttons frame
+        self._frb = tk.Frame(master=self._main, height=1, width=1)
+        self._frb.pack(side='left', expand=False)
+        self._frb.rowconfigure(index=0, weight=1)
+        self._frb.columnconfigure(index=0, weight=1)
+
+        # Place widgets into frames
+        self._createWidgets()
+
+        # Start application
+        master.mainloop()
+
+    def _cambiarLabel(self):
+        """Method to change label text
+        :return: None
+        :rtype: NoneType
+        """
+        self._lb.config(text=self._rbv.get())
+
+    def _reiniciar(self):
+        """Method to restore radio button selections
+        :return: None
+        :rtype: NoneType
+        """
+        self._rbv.set(' ')
+
+    def _createWidgets(self):
+        """Method to instance and place buttons and label widgets
+        :return: None
+        :rtype: NoneType
+        """
+        # Radio buttons
+        # # Init radio buttons
+        self._rb1 = tk.Radiobutton(self._frb, text='Opción 1', value='Opción 1',
+                                   variable=self._rbv, command=lambda: self._cambiarLabel())
+        self._rb2 = tk.Radiobutton(self._frb, text='Opción 2', value='Opción 2',
+                                   variable=self._rbv, command=lambda: self._cambiarLabel())
+        self._rb3 = tk.Radiobutton(self._frb, text='Opción 3', value='Opción 3',
+                                   variable=self._rbv, command=lambda: self._cambiarLabel())
+
+        # # Place radio buttons
+        self._rb1.grid(column=0, row=0, ipadx=0, ipady=0, padx=10, pady=5, sticky=tk.W + tk.N)
+        self._rb2.grid(column=0, row=1, ipadx=0, ipady=0, padx=10, pady=5, sticky=tk.W + tk.N)
+        self._rb3.grid(column=0, row=2, ipadx=0, ipady=0, padx=10, pady=5, sticky=tk.W + tk.N)
+
+        # Button and label
+        # # Init button and label
+        self._bt = tk.Button(self._fb, command=lambda: self._reiniciar(), text='Reiniciar')
+        self._lb = tk.Label(self._fb, textvariable=self._rbv)
+        # # Place button and label
+        self._lb.grid(column=0, row=0, ipadx=0, ipady=0, padx=10, pady=5, sticky=tk.N)
+        self._bt.grid(column=0, row=1, ipadx=0, ipady=0, padx=10, pady=5, sticky=tk.S)
+
+
+def mainApp() -> tuple[int, Application or None]:
+    """Main function to start Application class
+    :return: Application class, None when error exist
+    :rtype: tuple[tk.TclError, Application or None]
+    """
+    # Main window of an application
+    root = tk.Tk()
+
+    try:
+        # Class instance
+        app = Application(master=root)
+        return 0, app
+    except tk.TclError:
+        return 1, None
diff --git a/src/main.py b/src/main.py
index a47b6a3..6fda939 100644
--- a/src/main.py
+++ b/src/main.py
@@ -1,9 +1,13 @@
+from exerciseten.radiobutton import mainApp
+
+
 def main():
-    """Main script for pythonBootCamp project
+    """Main script for exercise ten.A
     :return: None
     :rtype: NoneType
     """
-    pass
+    state, app = mainApp()
+    exit(state)
 
 
 if __name__ == '__main__':