C# (C Sharp) please. Will thumbs down if not in C#.

Contacts Project Design a program that you can use to keep all of your friends names and phone numbers in a text file called Contacts.cnt. The program should prompt the user to make a selection from 0-7. Upon selecting a number the program should perform action then allov the user to make another selection if possible. C Sharp Selections 0. Add a nev record. int. 1. Search for a name. 2. Modify a phone number 3. Modify an email. 4. Delete a record. . . List all contacts.. 6. Alphabetize contacts. lnote cannot use Array. Sort() . Exit the program.-uhile loop Appending text To a fileStromheder I sveamuu StreamWriter in-file = File,AppendText("filepath"); Add de in_file.Write(text) in file.Writeline("text line); in file.Close); Record structure use Stru et FirstName, LastName, PhoneNumber, Email