Suppose an Artificial Satellite Has Been Put into Circular Orbit

Multiple Choice

Suppose an artificial satellite has been put into circular orbit about the Earth, at a distance from the center of the Earth equal to 1/4 the distance from the Earth's center to the Moon's center. In terms of the Moon's period T_m, what will be the period of the satellite?

A) 16 T_m.
B) 8 T_m.
C) T_m.
D) T_m/8.
E) T_m/16.