A body attached to a spring balance weighs $10 \mathrm{kg}$ on the earth. The body attached to the same spring balance is taken to a planet, where gravity is half that of the earth. The spring balance will read

Consider the following figure. 

Which of the following labelled points in the figure given above indicate the unstable state of an object?

Statement $\mathrm{I}$- The acceleration due to gravity decreases with an increase in height from the surface of the earth.

Statement $\mathrm{II}$- The acceleration due to gravity is inversely proportional to the square of the distance from the centre of the earth. 

Statement $\mathrm{I}$- A body weighs less on a hilltop than on the Earth's surface even though its mass remains unchanged.

Statement $\mathrm{II}$- The acceleration due to the gravity of the Earth decreases with height.