Imagine earth to be a solid sphere of mass M and radius R. If the value of acceleration due to gravity at a depth ‘d’ below earth’s surface is same as its value at a height ‘h’ above its surface and equal to $$\frac{g}{4}$$ (where g is the value of acceleration due to gravity on the surface of earth), the ratio of $$\frac{h}{d}$$ will be:

A

1

B

$$\frac{4}{3}$$

C

$$\frac{3}{2}$$

D

$$\frac{2}{3}$$