Virtual functions must:
A) Be overridden in every derived class.
B) Be declared virtual in every derived class.
C) Be declared virtual in the base class.
D) Have the same implementation in every derived class.

Question

Quizplus · Accepted Answer

Virtual functions must be declared as virtual in the base class so that they can be overridden in derived classes. Declaring them as virtual in the derived classes is optional, but not required. The derived classes can have their own implementation of the virtual functions. It is not necessary for the implementation to be the same in every derived class.

Virtual Functions Must