VI (20 points) Consider the following set of processes whose arrival times and CPU burst times are given: PROCESS ARRIVAL TIME BURST TIME 10 A B D uaw (a) Draw a Gantt chart of the process scheduling using non-preemptive, Shortest Job First (SJF) scheduling technique. Determine the waiting time and turnaround time of each processes. (b) Draw a Gantt chart of the process scheduling using preemptive, Shortest Job First (SJF) scheduling technique Determine the waiting time and turnaround time of each processes