The correct option is C 852
A number is divisible by 6 if it is divisible by both 2 and 3.
From the given options; 853 is not divisible by 2 since it is an even number and is not divisible by 2.
854 is divisible by 2 but 8 + 5 + 4 = 17 which is not a multiple of 3 , hence it is not divisible by 6.
852 is divisible by 2 and 8 + 5 + 2 = 15 which is divisible by 3.
Hence 852 is divisible by 6.
856 is divisible by 2 but 8+5+6 =19 which is not a multiple of 3.
Hence it is not divisible by 6.