We Would Like to Compare the Angular Momentum of Mars $\times$

Multiple Choice

We would like to compare the angular momentum of Mars about its axis of rotation with that of Earth's.The mass of Mars is 11% that of Earth,with a radius 53% that of Earth,and a rotational period 103% that of Earth.Assuming both planets to be uniform spheres calculate the ratio of the angular momentum of Mars to that of Earth.

A) 6.0 $\times$ 10^-2
B) 5.7 $\times$ 10^-2
C) 3.2 $\times$ 10^-2
D) 3.0 $\times$ 10^-2
E) 3.1 $\times$ 10^-2