One necessary condition for deadlock is ______, which states that there is a chain of waiting processes whereby P₀ is waiting for a resource held by P₁, P₁ is waiting for a resource held by P₂, and P_n is waiting for a resource held by P₀. A) hold and wait B) mutual exclusion C) circular wait D) no preemption

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Circular wait is the necessary condition for deadlock. It occurs when a set of two or more processes are waiting for each other to release their resources, forming a circular chain of waiting. This condition is also known as the "circular-wait condition." Hold and wait, mutual exclusion, and no preemption are not necessary conditions for deadlock, although they can contribute to the likelihood of deadlock occurring.

One Necessary Condition for Deadlock Is ______, Which States That