The correct option is
C ![](https://infinitestudent-migration-images.s3-us-west-2.amazonaws.com/_d06cd093-7cdb-4b1b-a308-dbd9d685160120190329-4112-1ugg93n.png)
Divisiblity by 2: If the last digit of a number is 0, 2, 4, 6 or 8, then the number is divisible by 2.
8, 4, 18 and 24 are divisible by 2.
Divisiblity by 3: If the sum of digits of a number is divisible by 3, then the number is divisible by 3.
9, 15, 18, 24 are divisible by 3.
A number is divisible by 6, if it is divisible by both 2 and 3.
18 and 24 are divisible by both 2 and 3. Hence, divisible by 6.