For the region in the first quadrant bounded by y = 1 − x2, the x-axis, and y-axis, determine which of the following is greater: the volume of the solid generated when the region is revolved about the x-axis or about the y-axis. When the region is revolved about the x-axis, the volume is . (Type an exact answer, using π as needed.) When the region is revolved about the y-axis, the volume is. (Type an exact answer, using π as needed.) Which volume is greater? A. The volume about the x-axis is greater. B. The volumes are equal. C. The volume about the y-axis is greater.