What happens if a pointer is deleted twice in a program as shown in the following C++ statements?

int *ptr = new int;
delete ptr;
delete ptr;

A. class B. struct C. typedef D. interface

A. Encapsulation B. Polymorphism C. Inheritance D. Instantiation

A. The process of creating multiple instances of a class B. The process of hiding the implementation details of a class C. The process of deriving a new class from an existing class D. The process of defining functions within a class

A. protected B. public C. friend D. None of the above