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  1. SELECTING_THE_VICTIM_TO_BE_ROLLBACKED_TO_THE_PREVIOUS_STATE_IS_DETERMINED_BY_THE_MINIMUM_COST._THE_FACTORS_DETERMINING_COST_OF_ROLLBACK_IS?$

  1. How long the transaction has computed, and how much longer the transaction will compute before it completes its designated task
  2. How many data items the transaction has used
  3. How many more data items the transaction needs for it to complete
  4. All of the mentioned

Correct Answer:
D. All of the mentioned

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