A satellite of mass m and radius R is moving in a circular orbit of radius r around a
planet of mass M.

A. The magnitude of its angular momentum with respect to the centre of the orbit is √GMr, where G is the gravitational constant and the direction of Lis perpendicular to the plane of the orbit
B. The magnitude of its angular momentum is mR√2gr where g is the acceleration due to gravity on the surface of the planet
C. The direction of angular momentum is parallel to the plane of the orbit
D. The direction of angular momentum is inclined to the plane of the orbit