The change in the value of g at a height h `h lt lt R` above the surface of the earth is the same as at a depth d= 2h below the surface of earth Reason: The value of g at a height is given by `g prime= g(1-(2h/R))` and the value of g at a depth d is given by `g prime= g(1-(d/R))`

Options

A. A. if both assertion and reason are true and reason is the correct explanation of the assertion
B. B. if both assertion and reason are true but reason is not correct explanation of the assertion
C. C. if assertion is true, but reason is false
D. D. if both assertion and reason are false