The transfer function of a phase lead compensator is found to be the form (s+z1 ) / (s + p1 ) and that of a lag compensator to be of the form (s+z2 ) / (s + p2 ). Then which of the following conditions must be satisfied?

(A) z1 > p1 and z2 > p2 (B) z1 > p1 and z2 < p2 (C) z1 < p1 and z2 < p2 (D) z1 < p1 and z2 > p2