Match List I with List II

1. AA-III, B-IV, C-II, D-I
2. BA-III, B-IV, C-I, D-II
3. CA-IV, B-III, C-II, D-I
4. DA-IV, B-II, C-I, D-III

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Show answer & explanation

Correct answer: B. A-III, B-IV, C-I, D-II

Explanation

Timestamp ordering is deadlock-free; strict 2PL gives cascadeless rollback; in 2PL a running transaction acquires its locks in the first (growing) phase; the lock point is where the transaction holds its final lock.