using COBOL

Question 2 Using any repetition structure of your choice, write a program that will keep on asking a user to key in the mark received by a student and print out its equivalent grade. The program will stop when the users decide to do so. Please include appropriate input validation. The table for the mark and grade list is as the following: A 90.0 - 100.0 70.0 - 89.9 50.0 - 69.9 0.0 - 49.9 F Sample solution: Mark for student 1: 89 Grade: B Any more student? [y]: y Mark for student 2: 57.9 Grade: C Any more student? [y]: n Activate Go to Settin Press any key to continue