The International Space Station ISS) Orbits Earth About 350 Km

The International Space Station ISS) orbits Earth about 350 km above the surface of Earth R_E = 6370 km) . Determine the ratio of the gravitational force experienced by a 55.0 kg astronaut when boarding the ISS to the gravitational force experienced by the astronaut when on Earth.

A) 0
B) 0.50
C) 0.90
D) 0.95
E) 1.11