In C language

Write code for the struct header file named "course.c" that consists of the following: includes for all header files function definitions for the following functions: o fillCourses() The function will take in two parameters: array by reference and the length of the array. The function will not return anything. The function will initialize all the data members for all the struct array objects. o subject values should be initialized to "CS" O courseNo values should be initialized to the index in the array o maxEnrollment values should be initialized to a random value between 50 and 80, inclusive o curEnrollment values should be initialized to 0 o calculateAverageEnrollment() The function will take in two parameters: array by reference and the length of the array. It will calculate the average enrollment for all courses using the curEnrollment data member. The function will return this average (double) value