From the following table determine the job assignment which will minimize cost. What is the cost? ABCDE 1 25 29 31 42 37 2 22 19 35 18 26 3 39 38 26 20 33 4 34 27 28 40 42 5 24 42 36 23 45 a. P127 Ob P124 Oc P128 Od P120