Physics · GRAVITATION

What is the work required to be done by an external agent to slowly move a body of mass \( m \) from the surface of Earth (radius \( R_E \), mass \( M_E \)) to a height \( h = R_E \) above the surface?

1. A
   \( \frac{G M_E m}{2 R_E} \)
2. B
   \( \frac{2 G M_E m}{R_E} \)
3. C
   \( \frac{G M_E m}{4 R_E} \)
4. D
   \( \frac{G M_E m}{R_E} \)