167 If x positive, which of the following could be the correct ordering of 1/x , 2^x , and x^2 ?
I X^2 < 2^X < 1/X
II X^2 < 1/X < 2^X
III 2^X < X^2 < 1/X
(A) None
(B) I only
(C) III only
(D) I AND II only
(E) I, II, and III
ANS: D