The least number, which must be added to 6709 to make it exactly divisible by 9, is
5
4
7
2
Correct Option: A
A number is divisible by 9 if the sum of its digits is divisible by 9. Here, 6 + 7 + 0 + 9 = 22 Now, 22 + 5 = 27, which is divisible by 9. Hence 5 must be added to 6709.