This must be written in C++. A company pays its salespeople on a commission basis. The salespeople each receive $200 per week plus a 9 percent commission of their gross sales for the sales period. For example, a salesperson who grosses $5000 in sales in the period receives $200 plus 9% of $5000 or a total of $650. Write a program that determines for each sales person their total sales and their salary. There are 5 salesperson for the company. You are to write from and too a txt file which contains the information for all 5 sales people. The file contains the salesperson's number 1-5 with numerous sales. List each person's number, their total sales and their salary for the period in a nice table format ,(The columns must line up) Restrictions: NO ARRAYS, use a switch statement and use functions