Pointer Errors and InheritancePart ALocate the errors in th

Pointer Errors and InheritancePart ALocate the errors in the following code. You will notice, not every line will contain a mistake. Pay close attention to the line preceding it. Look out for uninitialized pointers, NULL pointers, pointers to deleted objects, and confusing pointers with objects.1 int* p = new int;2 p = 5;3 *p = *p + 5;4 Employee e1 = new Employee(“Hacker, Harry”, 34000);5 Employee e2;6 e2->set_salary(38000);7 delete e2;8 Time* pnow = new time ();9 Time* t1 = new Time(2, 0, 0);10 cout << t1->seconds_from(pnow);11 delete*t1;12 cout << t1->get_seconds();13 Employee* e3 = new Employee(“Lin, Lisa”, 68000);14 cout << e3.get_salary();15 Time* t2 = new Time(1, 25, 0);16 cout << *t2.get_minutes();17 delete t2;Part BImplement a class person with the following fields:The namA pointer to the persons best friendA popularity counter that indicates how many people have this person as their best friendWrite a program that reads in a list of names, allocates a new Peron for every one of them, and places them in a vector . Next, request the name of each best friend for every Person objects. Find the object matching the friend’s name, and call a set_best_friend member function to update the pointer and counter. Lastly, print out every Person objects. Labeling the name, best friend, and popularity counter for all.Part CConsider the following classes B and D:Class B{Public; B(); B( int n);};B::B(){ cout << “B::B()n”;} B::B(int n){ cout << “B::B(“ << n << “)n”;}Class D : Public B{public: D(); D( int n);private: B b;};D::D(){ cout << “D::D()n”;}D::D(int n) : B(n){ b = B(-n); cout << “D::D(“<< n <<”)n”;}What does the following program print?int main(){ D d(3); return 0;}Determine the answer by hand, not by compiling and running the program.Part DImplement a base class person. Derive classes Student and Professor from Person. Every Person has will have a name, and birthdate. Every student will have a major, and every professor will have an income. Write the class definitions, the constructors, and the member functions print() for all classes.