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.
c. Be declared virtual in the base class.
Computer Science & Information Technology
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Computer Science & Information Technology
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1. A derived class destructor always invokes the base class destructor. 2. The base class destructor must be virtual.
Computer Science & Information Technology