Option B is true because the unbind() method is invoked from within a widget's object 1 .
Option D is true because the unbind() method needs the event name as an argument 1 .
The unbind() method in Tkinter is used to remove a binding between an event and a function. It can be invoked from within a widget's object when a binding is no longer needed. The method requires the event name as an argument to remove the binding for that specific event. For example:
button = tk.Button(root, text="Click me")
button.bind(" < Button-1 > ", callback_function) # bind left mouse click event to callback_function button.unbind(" < Button-1 > ") # remove the binding for the left mouse click event