Question:Consider the sample code given below and answer the question that follows.
class Person
{
public:
   Person();
      virtual ~Person();
};
class Student : public Person
{
public:
   Student();
   ~Student();
};

main()
{
   Person *p = new Student();
   delete p;
}
Why is the keyword "virtual" added before the Person destructor? 

A To make it impossible for this particular destructor to be overloaded 
B To ensure that correct destructor is called when p is deleted 
C To ensure that the destructors are called in proper order 
D To improve the speed of class Person's destruction 
E To prevent the Person class from being instantiated directly making it an abstract base class 

+ Answer
C 

+ Report

Mohammad Towhidul Islam

Editor, VCampus

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