Choose an image which represents an odd number.

Hint:

Odd number is the number which is not divisible by 2 i.e. the number which has 1, 3, 5, 7, and 9 on its ones place. We will have to check every option, for example, as we can see that option (a) represents 6 which is not an odd number but is an even number similarly we can check the rest.