Two Satellites, One in Geosynchronous Orbit T = 24 Hrs)

Two satellites, one in geosynchronous orbit T = 24 hrs) and one with a period of 12 hrs, are orbiting Earth. How many times larger than the radius of Earth is the distance between the orbits of the two satellites , , , ) ?

A) 0.51
B) 2.0
C) 6.6
D) 5.7
E) 2.5