Which of the following integrals, if either, calculates the area of the shaded region shown to the right? Give reasons for your answer. yex (x-(-x)) dx= 2x dx a. -1 b. (-x-(x)) dx = -2x dx -1 Choose the correct answer below. O A. The integral in part a calculates the area of the shaded region because function y = x is above the function y = - X. O B. The integral in part b calculates the area of the shaded region because function y = -x is above the function y = x. OC. Neither, because the graph of y = x is above the graph of y= -x for x<0, but is below it for x> 0.