(Choose only one answer) The "arrival time" and "total processing time" information for five processes (P1, ..., P5) are given below. For the FIFO scheduling method, calculate the average waiting times of the processes. (Quantum is 1 unit of time) Arrival times : P1:0, P2:1, P3:2, P4:7, P5:9 Total processing times: P1:7, P2:4, P3:3, P4:3, P5:5 Select one: O A6 OB.5.3 O C.4 O D. 8.06