Jamboree Question of the Day - Day 142, June 2nd 2011

Is a^3 is divisible by 81, which of these could be the remainder when If a divided by 27?

I. 3

II. 9

III. 18

(A) I only
(B) II only
(C) III only
(D) I & II only
(E) II & III only

Answer is E