The production manager must determine the optimal processing sequence for six jobs through two machines (M1 and M2). The same sequence will be allowed in both departments. The manager's goal is to minimize the total completion time. Processing Time (hrs) JOB MI M2 4 3 A B D E F OA 5 8 3 6 1 3 3 (a) Determine the optimal sequence using Johnson's Rule. (1 point) (b) Draw a Gantt chart with this optimal sequence and find total completion time and total idle time (3 points) (c) Find the flow times of all the jobs on MI and M2 using the optimal sequence. (I point)