Question: Suppose we have four resources, A, B, C, and D, shared among 3 processes, P1, P2 and P3. The processes make the requests in the

Suppose we have four resources, A, B, C, and D, shared among 3 processes, P1, P2 and P3. The processes make the requests in the orders as shown below. Which set of the requests will guarantee that the system is deadlock free? A.

P1: A, B, C, D P2: B, C, D P3: C, D, A

P1: A, C, B, D P2: C, D P3: B, D

P1: A, C, B, D P2: B, A P3: D, C

P1: A, C P2: B, C, D P3: C, D, A

E. none of the above is deadlock free

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