which three should also be backed up in addition to data?

When backing up a replication slave, which three should also be backed up in addition to
data?

A.
The master.info and relay.info files

B.
The relay log files

C.
The relay index file

D.
Mysql.slave_master_info table

E.
Mysql.slave_relay_log_info table

F.
Mysql.slave_worker_info table