If the diameter of a sphere is reduced to its half, then the volume would be:

A

increased by $$\cfrac{1}{4}$$ of the former volume

B

reduced by $$\cfrac{1}{4}$$ of the former volume

C

increased by $$\cfrac{1}{8}$$ of the former volume

D

reduced by $$\cfrac{1}{8}$$ of the former volume