The main function the main will prompt for the student answers file name and call the read function. if the read function fails the program should output an error message and quit. if the first read works the main should prompt for an read in the correct answers file name and call the read function a second time. if the read fails an error message should be displayed and main should quit. if the number of student answers is not the same as the number of correct answers an error message should be displayed and main should quit. if the number of student answers and correct answers are the same but are both 0 display an error message and quit. if your program gets this far call the work/display function.