MUST BE IN C!!!!!

Write a program that includes the following: 1. (3 points) A function called Check Word, which receives a string as an input, and checks whether it starts with the letter 'a' or not. 2.7 points) The main function, which lets the user input endlessly a string until the user enter S, then the main calls the function Check Word to check if the string starts with 'a'or not. 3. (3 points) The program should count how many words entered by the user and start with a, if more than the program displays, "Good