What must happen to allow private members of a class to be inherited by a derived class?

________ charges for services rendered but not actually performed

Fill in the blank(s) with correct word

Assume the function AdvertisingRatio is a pure virtual function. Which prototype would a programmer use in the class declaration for the class Media?

A. void virtual AdvertisingRatio() = 0; B. virtual void AdvertisingRatio() C. virtual void AdvertisingRatio() = 0; D. void Media::AdvertisingRatio() = 0;