How does the volume of a sphere compare to that of a cylinder with a height and radius equal to the radius of the sphere?
A. The sphere is the same volume as the cylinder
B. The sphere is the same volume as the cylinder minus a cone of equal base and height
C. The sphere is half the volume of the cylinder minus a cone of equal base and height
D. The sphere is twice the volume of the cylinder minus a cone of equal base and height
