You are working on&#

You are working on a test database where instance recovery takes a considerable amount of time.How can reduce the recovery time？（）

• ABy multiplexing the control files
• BBy multiplexing the redo log files
• CBy decreasing the size of redo log files
• DBy configuring mean time to recover （MTTR） to a lower value
• EBy setting the UNDO_RETENTION parameter to a higher value