设区域D={(x,y)(0≤y≤x2,0≤x≤1),则D绕X轴旋转一周所得旋转体的体积为( )
A <img src="https://www.beizhujiaoyu.com/uploads/202208/20191017113233_5407.png" width="13" height="22" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20191017113237_9001.png" width="12" height="22" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20191017113242_1345.png" width="12" height="22" /> D π