Question

Enforce encapsulation

You have a class that implements two interfaces that both have a method with the same name. Interface IA should be the default implementation. Interface IB should be used only in special situations. How do you implement those interfaces?

	Implement both IA and IB implicitly.
	Implement IA explicitly and IB implicitly.
	Implement both IA and IB explicitly.
	Implement IA implicitly and IB explicitly.