Explanation:

The situation described is when two or more processes are waiting for resources held by each other. This creates a circular wait condition where none of the processes can proceed.

Step 1: Recall the definition

• Pooling → Technique for resource reuse (not blocking).
• Thrashing → Excessive paging/swapping in memory management.
• Paging → Memory management scheme, not related to blocking.
• Deadlock → State where processes wait indefinitely for resources held by each other.

Step 2: Apply to the question

Here, processes are blocked, waiting for resources held by each other, which is exactly the definition of a Deadlock.

✅ Correct option is: (B) Deadlock