Which two statements are true about recovering logically corrupted tables or table partitions from an RMAN backup?
A.
Tables or table partitions can be recovered by using an auxiliary instance only.
B.
Tables or table partitions with a foreign key cannot be recovered.
C.
Tables or table partitions can be recovered only when the database is in mount state.
D.
Tables or table partitions from the system and sysauxtablespaces cannot be recovered.
E.
Tables with not null constraints cannot be recovered.
Explanation:
http://docs.oracle.com/database/121/BRADV/rcmresind.htm#BRADV695 (Limitations of Recovering Tables and Table Partitions from RMAN Backups)