A satellite of mass 'm' is revolving in circular orbit of radius 'r' round the earth. Its angular momentum w.r.t the centre of its orbit is (M=mass of earth, G=universal gravitational constant)

Options

A. `GM m r)^1/2`
B. `GM m^2 r)^1/2`
C. `GM m^2 r^2)^1/2`
D. `GM^2 m^2 r)^1/2`