You are in the middle of transaction, updating a table. The machine on which the database is running reboots because of

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You are in the middle of transaction, updating a table. The machine on which the database is running reboots because of a power outage. This causes a database instance failure.Which statement is true in this situation?

A. The online redo log files and archived redo log files are required to accomplish a recovery.
B. The uncommitted transaction is committed at the next startup of the database instance.
C. The uncommitted transaction is rolled back automatically at the next opening of the database.
D. The DBA has to perform a recovery on the database to recover the uncommitted transaction.