An oscillating spring and mass system performing SHM, has a maximumacceleration of a1. If the mass is increased by 50%, and the amplitude remains constant, what is the new maximum acceleration?
(A) 1.5a1 (B) (1.5)^2(a1) (C) a1 (D) (1.5)^-1(a1) (E)(1.5)^-2(a1)