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Which one of the following statements is correct?
a) A virtual destructor is required in any class with pure virtual member
functions.
b) A base class must have a virtual destructor when someone uses a base
class pointer to delete a derived class object.
a) A virtual destructor is required in any class with pure virtual member
functions.
b) A base class must have a virtual destructor when someone uses a base
class pointer to delete a derived class object.