MHT CET Physics question

If one assumes that the gravitational force due to the earth decreases in proportion to the inverse square of the distance from the centre of the earth, then which of the following relation between (centripetal acceleration of moon), (distance of the moon from centre of the earth), (acceleration due to gravity on the surface of the earth) and (radius of the earth) is correct?

• (A)
• (B)
• (C)
• (D)Both (b) and (c)Correct