Please only answer D using the shell method

Activity 6.2.3. In each of the following questions, draw a careful, labeled sketch of the region described, as well as the resulting solid that results from revolving the region about the stated axis. In addition, draw a representative slice and state the volume of that slice, along with a definite integral whose value is the volume of the entire solid. It is not necessary to evaluate the integrals you nd. a. The region S bounded by the yaxis, the curve y = f, and the line y = 2; revolve S about the y-axis. b. The region S bounded by the as-axis, the curve y = , and the line a: = 4; revolve S about the yaxis. c. The nite region S in the first quadrant bounded by the curves y = 2m and y = 3:3; revolve S about the x-axis. d. The nite region S in the first quadrant bounded by the curves y = 2m and y = 3:3; revolve S about the yaxis