A meteroid is in a circular orbit 600 km above the surface of a distant planet. the planet has the same mass as Earth but has a radius that is 90% of Earths (where Earths radius is approximately 6370 km). The acceleration of the meteroid due to the gravitational force exerted by the planet is most nearly

A) 9 m/s^2 toward the center of the planet

B) 9 m/s^2 in the direction of the meteoroids motion

C) 10 m/s^2 toward the center of the planet

D) 10 m/s^2 in the direction of the meteoroids motion