4. A satellite of mass m is mounted on a rocket that is initially at rest on the surface of the Earth. If the Earth has mass M, what is the total energy the rocket must provide in order for the satellite to orbit at an altitude equal to Rₑ above the Earth's surface? (A) GMm/Rₑ (B) 1/2(GMm/Rₑ) (C) 3/4(GMm/Rₑ) (D) 1/2(GMm/Rₑ²) (E) Rₑ/GMm