It means if it found that 3 students got 51 marks then count is 3 and prints 3... And again it checks for 52... And if 2 students got 52 its count is 2....and again checks for 53.... 54.......... 100....
And in array of frequency
F[ 50] ={3,2,.....}
So absolutely the correct answer is "A" the array of 50 integers
Am I ryt?