Solution:

We are asked about a way to recover from a deadlock which has already occurred.

Option Analysis:

• (A) Process termination ✅ – One way to recover is to abort one or more processes involved in the deadlock to break the cycle.
• (B) Non-preemption of resources ❌ – This is a condition that can lead to deadlock, not a recovery mechanism.
• (C) Banker’s algorithm ❌ – This is a deadlock avoidance technique (used before deadlock occurs), not recovery.
• (D) Circular wait ❌ – This is one of the necessary conditions for deadlock, not a recovery method.

✅ Correct Answer: (A) Process termination