Assigning a derived class reference to a base class variable is safe:
A)because the derived class has an object of its base class.
B)because the derived class is an object of its base class.
C)only when the base class is abstract.
D)only when the base class is concrete.

Question

Quizplus · Accepted Answer

Assigning a derived class reference to a base class variable is safe because the derived class is an object of its base class. This is because a derived class inherits all the members of its base class, and therefore can be treated as an instance of its base class.

Assigning a Derived Class Reference to a Base Class Variable