Which statement is correct about the rotational inertia of a rotating object? A) Rotational inertia is conserved because it is resistance to change in rotational motion.
B) Rotational inertia is always decreasing because angular momentum is conserved.
C) When mass moves closer to the point of rotation, rotational inertia decreases.
D) When mass moves closer to the point of rotation, rotational inertia increases.