GRE Question of the Day (February 21)

If \({a}\) and \({b}\) are both positive even integers, which of the following must be even?

I. \({a^b}\)

II. \({(a+1)^b}\)

III. \({a^{(b+1)}}\)

(A) I only

(B) II only

(C) I and II only

(D) I and III only

(E) I, II, and III

Correct Answer - D - (click and drag your mouse to see the answer)