Consider the region d in the yz plane bounded by the line y= and the curve +z = 1, where y2 0. if the region d is revolved about the z-axis in , then the volume

Consider the region D in the yz plane bounded by the line y= and the curve +z = 1, where y2 0. If the region D is revolved about the Z-axis in , then the volume of the resulting solid IS (A B) (C) (D) v3 2