The acceleration due to gravity at height h above the earth if h`lt``lt`R (Radius of earth) is given by

Options

A. `g^'=g(1-(2h^2)/(R^2))`
B. `g^'=g(1-(2h)/(R))`
C. `g^'=g(1-(h)/(2R))`
D. `g^'=g(1-(h^2)/(2R^2))`