A simple pendulum and a mass oscillating vertically on an ideal spring both have period T on Earth. If they are both taken to the surface of the moon, how will the oscillation periods change? A$)$ Both periods would remain the same. B$)$ Both periods would change C$)$ The period of the pendulum would change, but the period of the spring would remain the same. D$)$ The period of the spring would change, but the period of the pendulum would remain the same.