Which two statements are true?

Which two statements are true?

Which two statements are true?

A.
An abstract class CANNOT be extended by an abstract class.

B.
An abstract class can be extended by a concrete class.

C.
An interface can be extended by an abstract class.

D.
An interface CANNOT be extended by another interface.

E.
An abstract class can implement an interface.

F.
An abstract class can be extended by an interface.



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