Read the following SAT test question and then click on a button to select your answer.

What is the volume of a cube with surface area 54(x^2)?

(A) 9(x^2)
(B) 27(x^3)
(C) 81(x^2)
(D) 81(x^3)
(E) 729(x^3)

来源:可可英语 http://www.kekenet.com/sat/201507/389328.shtml