PART2: Phone Book Develop a C program to provide simple phone book functions. 1-ADD 2-Search 3-Delete 4-List 5-Exit Insert a number and then press enter

C++ Lab Template:   //Include statements#include <iostream>#include <string> using namespace std; //Global declarations: Constants and type definitions only -- no variables //Function prototypes int main(){    //In cout statement below substitute your name    cout << "Your name" << endl << endl;     //Variable declarations     //Program logic     //Closing program statements    system("pause");    return 0;} //Function definitions

Programming Language: C++ 4. Select the two correct statements about stub functions: Select one or more: a. stubs are used to test the functionality of a program b. stubs must return a value c. stubs are programs that test if a called function returns the correct result d. stubs are simpler than the functions they replace