The instance abnormally terminates because of a power outage. Which statement is true about redo log filesduring instance recovery（）

A. Inactive and current redo log files are required to accomplish recovery.
B. Online and archived redo log files are required to accomplish instance recovery.
C. All redo log entries after the last checkpoint are applied from redo log files to data files.
D. All redo log entries recorded in the current redo log file until the checkpoint position are applied to data file