Correct Answer - C
Gravitational potential ,
`V=(-GM)/r(rgtR)`
`V=(-GM(3R^(2)-r^(2)))/(2R^(3))(rltR)`
Potential energy,
`U=(-GMm)/r(rgtR)`
`U=(-GMm(3R^(2)-r^(2)))/(2R^(3))(rltR)`
`KE="Loss of "PE=O-U`
`KE=U`
`:. KE` will very with `r` exactly as that of `V` with sign changed.