2. Pointer arithmetic. Implement the following: a. Implement a print function with array and size parameters. This function should print the array using pointer arithmetic. b. Overload the print function to accept array, size and index parameters. If the index is between 1 and size-2 inclusive: Use pointer arithmetic to print: 1. the value at index 2. the value previous to the index 3. the value after the index c. Implement a sum function with array and size parameters. This function should return sum of the array, and use pointer arithmetic. d. Implement a average function with array and size parameters. This function should return average of the array, and use pointer arithmetic. e. Use provided main function to test your functions. Main function:

A brief explanation of call by value versus call by reference would be helpful. Sincerely,

Trying to update a C++ code I wrote earlier (perhaps around 30-60 lines of code) and make it compile and run showing how to use: Note: I am currently working on using class. I am not commited to the below code, just looking for a job example to help me understand the concepts better and how to clean up my own code to be more effiecent using the current items I am reading about. I would like to stay using the address example though. Please label code to help me understand as I break it down. a.       abstract data type b.       const c.       class constructor   #include <iostream>#include <string> using namespace std; class address // address structure type{public:string streetAddress;string city;string state;int zipcode; }; int main() { address guest; // class address named guest address home; // class adress named home and inputshome.streetAddress = "1234 Right Way Rd.";home.city = "Huntsville";home.state = "AL";home.zipcode = 35803;   cout << "What is your address?…

What is a standard library?       A. A library created by the programmer       B. Libraries included as part of the C++ language       C. Libraries that include blueprints of classes       D. There are no standard libraries