Suppose That There Are Two Resource Types (R1 and R2)

Suppose that there are two resource types (R1 and R2) with five resources each available to four processes. At time 0, the following data is collected. The table indicates the process, the number of resources of each type currently allocated to the processes, and the current request of each resource type by each process. Process Allocation Request
R1 R2 R1 R2
P₀ 2 0 3 2
P₁ 1 1 1 0
P₂ 0 1 1 1
P₃ 1 1 3 2
Which of the following sentences is correct?

A) All four processes are currently deadlocked.
B) The system is not deadlocked.
C) Processes P₀ and P₃ are deadlocked.
D) Processes P₀, P₁ and P₃ are deadlocked.