Erica has a sphere shaped bouncy ball with
a diameter of 2 inches. Michelle has a
sphere shaped bouncy ball with a diameter
of 4 inches. To the nearest tenth, how much
more space is occupied by Michelle's
bouncy ball than Erica's?

A) 29.3 in³
B) 33.5 in³
C) 4.2 in³
D) 12.4 in³