A right circular cone has a volume of 64 cubic feet. A new right circular cone is created by reducing the radius and height of the original cone by a scale factor of which statement describes the volume of the new cone?
a. The volume of the new cone is the volume of the original cone.
b. The volume of the new cone is half the volume of the original cone.
c. The volume of the new cone is one-fourth the volume of the original cone.
d. The volume of the new cone is double the volume of the original cone.