Sketch the given region of integration R and evaluate the integral over R using polar coordinates. 1 dA; R= {(xy): x7+ yz =4, x20, y= 0} R 19-x Sketch the given region of integration R. Choose the correct graph below. OA. O B. O C. O D. Ay AY O -2 -2 -2 -2- dA = 19-x2 -yz (Type an exact answer.)