Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: 6a2 = 6 * 6a * 6a = 216a2
 The question and answer:
The edge of a cube is 6a cm. Find its surface?
Options:
(A) 216a2
(B) 24a4
(C) 24a1
(D) 24a2
(E) 24a7
The answer is (A)