Which task must have already been performed to enable you to achieve this objective?

Using Oracle Scheduler you have scheduled two jobs, JOB_A and JOB_B, to run at 9:00 p.m.every Friday.
You want both the jobs to use a single resource plan, WEEKEND_PLAN.
Which task must have already been performed to enable you to achieve this objective?

A.
A window must have been created with the WEEKEND_PLAN resource plan.

B.
A program must have been created with the WEEKEND_PLAN resource plan.

C.
A job class must have been created with the WEEKEND_PLAN resource plan.

D.
A window group must have been created with the WEEKEND_PLAN resource plan.