Danielle, Edward, and Francis are three salespeople at Holiday Homes. In C#, write an application named HomeSales that prompts the user for a salesperson initial (D, E, or F) input as a string. Either uppercase or lowercase initials are valid. While the user does not type Z, continue by prompting for the amount of a sale. Issue the error message "Sorry - invalid salesperson" 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 salespersons total, a grand total for all sales, and the name of the salesperson with the highest total unless there is a tie. If there is a tie, indicate this in the program's output with the message: "There was a tie".