If a, b, and c are positive and \(a^ { -2 } b^2c^2 > a^ { -3 } b^3c^2\), which of the following must be true? I. \(a > b\) II. \(a > c\) III. \(b > c\)
(A)I only (B)II only (C)III only (D)I and III only (E)I, II and III
A