CP 111: PRINCIPLES OF COMPUTER PROGRAMMING CLASS WORK 05/07/2021 A standard I class teacher at Mugumu Primary School wants a program to calculate the sum and average marks of student for the monthly exam. A student may sit for any number of exam, since the school by-laws allows student to postpone any exam if he/she is not healthy. The program will print the sum, average of marks, and the grade of marks. The grade ranges as follows: 0 – 20 F 21 – 40 D 41 – 60 C 61 – 80 B 81 – 100 A The program should restrict marks below 0, and above 100.