A Hollow Sphere, a Solid Sphere, a Hollow Right Cylinder

Multiple Choice

A hollow sphere, a solid sphere, a hollow right cylinder (or hoop) , and a solid right cylinder, each with the same total mass and identical maximum radius, are each rotated about their axis of symmetry. The object with the largest moment of inertia is the

A) hollow sphere.
B) solid sphere.
C) hollow right cylinder (or hoop) .
D) solid right cylinder.