Which command will result in a trace file being created with the create controlfile command contained in it?

Which command will result in a trace file being created with the create controlfile command
contained in it?

A.
alter database backup controlfile;

B.
alter database backup controlfile to trace;

C.
alter database controlfile backup;

D.
alter database controlfile backup to ‘/ora01/oracle/ctrl_backup.ctl’;

E.
alter database begin controlfile backup;