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; }

• A. Compilation Error
• B. N :: operator delete
• C. M :: operator delete
• D. Runtime Error
• E. None of these