Which of the following statements are true about acceleration due to gravity?

Options

A. As we go down below Earth's surface, the acceleration due to gravity decreases by a factor `(1-d/R_E)`
B. The acceleration due to gravity is maximum at the surface of the Earth
C. As we go above the surface of the Earth the acceleration due to gravity decrease
D. The acceleration due to gravity is constant as we go up or down the surface of the Earth

Answer

D