A system has 12 magnetic tape drives and 3 processes: P0, P1, and P2. Process P0 requires 10 tape drives, P1 requires 4 and P2 requires 9 tape…

A system has 12 magnetic tape drives and 3 processes: P0, P1, and P2. Process P0 requires 10 tape drives, P1 requires 4 and P2 requires 9 tape drives. The current allocation of tape drives to processes P0, P1 and P2 is 5, 2, 2, respectively. Which of the following sequences is a safe sequence?

1. a) P0, P1, P2
2. b) P1, P2, P0
3. c) P2, P0, P1
4. d) P1, P0, P2