The configuration of the online redo log files is as follows：   Based on this configuration， which statement is true？（）

• A、 The LGWR process concurrently writes the redo log entries to both the members of a group.
• B、 When a member of a group becomes corrupt， the database crashes.
• C、 The sizes of the redo01a.log and redo01b.log online redo log members of group Group1 can be different.
• D、 When redo02a.log and redo02b.log files become corrupt， then the database operations will proceed as normal.