Write a C program that includes the following: 1. (7 points) A function called CheckProper, which receives a string as an input, and checks whether it is a proper password or not. Note: For a string to be a proper password it should be at least 7 characters long and contains at least one special character, one digit, and one uppercase letter. 2. (6 points) The main function, which lets the user input a string, then the main calls the function CheckProper to check if it is proper or not, if yes end the program, if not, the main gives the user 3 attempts to enter a proper password.