We have two jobs X and Y. The combination of them is called job Z. Thus Z= (Note the order in the sequence.) Job X is 3s CPU followed by 3s 1/0. Yis 3s I/O followed by 3s CPU (A). Serial Execution. (A1) What is the turnaround time of Z? Tr(z) = (Select] (A2) What is the cpu utilization ? CPU(Z) = [Select] (B). Batch Multiprogramming. (B1) What is the turnaround time of Z? Tr(z) = [ Select] (B2) What is the CPU utilization ? CPU(Z) = ( Select) (C) Time sharing with timeslice 1s. (C1) What is the turnaround time of Z? Tr(z) = (Select] (C2) What is the CPU utilization ? CPUIZ = Seren SCIELL (D) Multitasking with quantum 1s. (D1) What is the turnaround time of Z? Tr(Z) = [ Select] (D2) What is the CPU utilization ? CPU(Z) = [ Select) (1) For (C) above, select the pattern of execution used by the CPU? An X indicates CPU executing X, Y executing Y, and - CPU is idle. One character one time-slide/quantum [Select] OPTION-1: X-XYXYY- OPTION-2: X-XYXY-Y OPTION-3: None (neither OPTION-1, nor OPTION-2) (2) For (D) above, repeat the question of (1) above. [Select)