Assume that a satellite executes perfectly circular orbits around a perfectly circular sphere. The work done by the satellite in 1 complete revolution is _____

• A. (1/2) x (G x m x M)/(R+h)
• B. – (G x m x M)/(R+h)
• C. – (1/2) x (G x m x M)/(R+h)
• D. 0