What should the logging level be for JOB_CLASSA?

You want to have a compatible audit trail of everything that has happened to the jobs in the job class named JOB_CLASSA.
What should the logging level be for JOB_CLASSA?

A.
DBMS_SCHEDULER.ENABLE

B.
DBMS_SCHEDULER.LOGGING_OFF

C.
DBMS_SCHEDULER.LOGGING_RUNS

D.
DBMS_SCHEDULER.LOGGING_FULL

E.
DBMS_SCHEDULER.LOGGING_COMPLETE