Given the following lines of code: class A

{

public:

A() { cout << "A constructor "; }

virtual ~A() { cout << "A destructor " << endl; }

};

class B : public A

{

public:

B() { cout << "B constructor " << endl; }

~B() { cout << "B destructor " << endl; }

};

void main()

{

A* a2 = new B;

delete a2;

}

What is expected to be printed after the function execution? Explain.

a. A constructor B constructor B destructor A destructor
b. A constructor A destructor
c. B constructor A constructor A destructor B destructor
d. None.

c++