19. Sketch the region S bounded by the curves y = 3x2, y = 3, and x = 0. Give the formula that will find the volume of the solid generated by revolving this region about the line x = -2. A. 2Tx (3 -3x) da B. 27 (x + 2) (3 - 3x2) dx Jo 6 C. T ( + 2 ) 2 - (3 - 312 ) 2 da E. both B and D F. both A and C