What does the following program do$?$It accepts $4$ test scores for each of $4$ students and outputs the average for each student.It accepts $4$ test scores for $3$ students and outputs the average of the $12$ scores.It accepts $4$ test scores for $2$ students, then averages and outputs all the scores.It accepts one test score for each of $3$ students and outputs the average of the $3$ scores.