Grades in descending order: 99 99 98 91 85 67 49 Average grade: 84.0 Subprogram Availability: Void sort( int numArray[], int size, int mode); You are required to design a program that solves this problem using functions. You already have a sorting function; build on this module. Include a function that reads in the integer values named as "get_grades" and a function that prints the results to standard output named as "print_grades". Decide what parameters should be included for each of the functions mentioned above and invoke them at the appropriate time in your main program. Include as much documentation as it necessary to make your answer understandable. You don't have to write the bodies of the functions, all you have to do is provide their formal specifications, that is, the formal parameter list and the type declaration of these parameters (see the function sort above).