Why simple destructor does not delete the derived object if declared using base pointer

Question

int main()
{

    Base *p = new Derived;
    delete p;
    return 0;
}

I have some confusion, why deleting p here won\'t delete the derived object ? Is

Answer 1

Deletion of an object via a pointer to its base class is undefined unless the base has a virtual destructor. Even with a virtual destructor, the order of deletion may not be what immediately comes to mind.

For more information, see this destructor reference.