Question 3 [16 Serial input aa O for shift right (down) 1 for shift left (up) o MUX A 2 Ay- M2 o MUX Serial input (/) Part (a): If input A is 1001, Selects 1,1R = 1, and IL = 0? Part (b): If input A is 01 10, Selects 0, IR-1, and IL :0