Which statement is TRUE? A.If a cone and a cylinder have the same base and height then the volume of the cone is of the volume of the cylinder. B.If a pyramid and rectangular prism have the same base and height then the volume of the pyramid is of the volume of the rectangular prism. C.If a cylinder and a sphere have the same radius, and height equal to the diameter then the volume of a cylinder is 1/3 of the volume of the sphere. D.If a cylinder and a sphere have the same radius then the volume of the cylinder is equal to the volume of the sphere