A Vertical Spring with a Spring Constant of 4

A vertical spring with a spring constant of 4.00 N/m,has a 1.00-kg mass attached to it,and moves in a medium with a damping constant 0.025 kg/s.The mass is released from rest at a position of 3.00 cm from equilibrium position.What is the amplitude of the oscillation after 20 seconds have elapsed?

A) 2.34 cm
B) 2.25 cm
C) 1.88 cm
D) 1.00 cm
E) 2.59 cm