The following code is an example of the correct use of the virtual keyword (assume Student is a subclass of Person ): ____.
A) virtual public Person
B) class Student : public Person (virtual)
C) virtual class Student : public Person
D) class Student : virtual public Person

Question

Quizplus · Accepted Answer

The correct use of the virtual keyword in this case is to put it before the base class in the derived class declaration, indicating that there may be additional subclasses that inherit from Person and we want to ensure that only one base class instance is created for each object of the derived class. Therefore, the correct syntax is "class Student : virtual public Person".

The Following Code Is an Example of the Correct Use