If \(x\), \(y\), and \(z\) are positive and \(x^4 y^3 z^3 > x^5 y^3 z^2\). Which of the following must be true ? I. \(x > y\) II. \(y > z\) III. \(z > x\)
(A)I only (B)II only (C)III only (D)I and III only (E)II and III only
C