Can someone please explain it to me why my answer is wrong??!!! ASAP?!!

ns Du Atoms is formed when a circle of radius 2 centered at (6,0) is revolved about the y-axis. a. Use the shell method to write an integral for the volume of the torus. b. Use the washer method to write an integral for the volume of the torus. c. Find the volume of the torus by evaiuating one of the two integrals obtained in parts (a) and (b). (Hint: Both integrals can be evaluated without using the Fundamental Theorem of Calculus.) a. Set up the integral that gives the volume of the torus using the shell method. Select the correct choice below and ll in the answer boxes to complete your choice. (Type exact answers.) E 3-... oefdy b Help Me Solve This View an Example Get More Help A Clear A" Final Cheek