A Solid Uniform Sphere of Radius R and Mass M

Multiple Choice

A solid uniform sphere of radius R and mass M has a rotational inertia about a diameter that is given by (2/5) MR². A light string of length 3R is attached to the surface and used to suspend the sphere from the ceiling. Its rotational inertia about the point of attachment at the ceiling is:

A) (2/5) MR²
B) 9MR²
C) 16MR²
D) 47/5MR²
E) (82/5) MR²