Danielle, Edward, and Francis are three salespeople at Holiday Homes. Write an application named HomeSales that prompts the user for a salesperson initial $($D$,$ E$,$ or F$).$

Either uppercase or lowercase initials are valid.

While the user does not type Z$,$ continue by prompting for the amount of a sale.

Issue an error message for any invalid initials entered.

Keep a running total of the amounts sold by each salesperson.

After the user types Z or z for an initial, display each salesperson$$s total, a grand total for all sales, and the name of the salesperson with the highest total.

Programming in C