I believe the answer is humor.
This is because, the mood of danger is shown because of policemen meaning something bad might or could have happened. The mood of mystery is shown because you do not know where the man is, or why the policemen is there. Suspense is shown because the man speaks up quickly.
Explanation:
is there like a file to this if not i think it means ...........
I think the appositive phrase would be B. plays on
