What happens when a job board is marked as preselected?

What happens when a job board is marked as preselected?
A . The job board is available for the posting but the job does NOT have to be posted to this job board
B. The job board is available for the posting profile and the job must be posted to this job board.
C. The job board is available for the posting profile and the job will be posted to this job board if NOT removed from the list during the posting process.

Answer: C