A Satellite Is in a Circular Orbit About the Earth

A satellite is in a circular orbit about the Earth at an altitude at which air resistance is negligible. Which of the following statements is true?

A) There is only one force acting on the satellite.
B) There are two forces acting on the satellite, and their resultant is zero.
C) There are two forces acting on the satellite, and their resultant is not zero.
D) There are three forces acting on the satellite.
E) None of the preceding statements are correct.