Else, read the information from the file into a local structure variable (the variable to be returned). you can assume that the number of students in the file will not exceed the size of the array. note that the number of students enrolled is not know and has to be determined while reading the list of names in the file. this function is tested using unit testing. (3) function this function takes as argument a course structure and returns true if the number of students enrolled is less or equal the class size, and false otherwise. this function is tested using unit testing. (4) function this function takes as argument a course structure and prints all the students to standard output, each one on a new line. (5) function this function takes two arguments: a string with the desired output file name, and a course structure.