What is the output of this program?#include <iostream>

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What is the output of this program?

#include <iostream>
    #include <new>
    using namespace std;
    struct N 
    {
        virtual ~N() {  };
        void operator delete(void* ptr1) 
        {
            cout << "N :: operator delete" << endl;
        }
    };
    struct M : N 
    {
        void operator delete(void* ptr1) 
        {
            cout << "M :: operator delete" << endl;
        }
    };
    int main() 
    {
        N* ptr2 = new M;
        delete ptr2;
    }

1. Compilation Error
2. N :: operator delete
3. M :: operator delete
4. Runtime Error
5. None of these

Correct Option: C

In this program, We are passing the value to the M, So we are printing M::operator delete.