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Which of the following statements correctly describes Isolation and Transaction Isolation Levels in a database system?

Statement$-1$: Ensuring the isolation property is the responsibility of a component of the database system called the concurrency-control system.

Statement$-2$: The isolation levels may be Serializable, Repeatable read, Read committed, Read uncommitted and all the isolation levels additionally disallow dirty writes, that is, they disallow writes to a data item that has already been written by another transaction that has not yet committed or aborted.

  1. Statement$-1$ is False and Statement$-2$ is True
  2. Statement$-1$ is True and Statement$-2$ is False
  3. Statement$-1$ is True and Statement$-2$ is True
  4. Statement$-1$ is False and Statement$-2$ is False

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