Two identical mass–spring systems, A and B, oscillate on frictionless surfaces. System A is released from rest at displacement +0.03m, while system B is released from rest at displacement +0.06m. How does the time each system takes to reach the equilibrium position for the first time compare?
a) System A takes half as much time as system B.
b) System A takes 21 as much time as system B.
c) System A takes the same time as system B.
d) System A takes twice as much time as system B.