Statement I : The moment of inertia of a rigid body depends only on the mass of the body, its shape and size.

Statement II : Moment of inertia I = ${\mathrm{MR}}^2$ where M is the mass of the body and R is the radius vector.

If both statement I and statement II are true and statement II is the correct explanation of statement I.

If both statement I and statement II are true but statement II is not the correct explanation of statement I.

If statement I is true but statement II is false 

If both statement I and statement II are false