Frieda Is at a Denver Broncos Football Game,and She Is

Frieda is at a Denver Broncos Football game,and she is being bothered by several extremely drunk spectators in nearby seats.She asks a security officer to do something,but the security officer refuses.She then offers the security officer $100 if he'll stop the problem.He agrees,then warns the drunk spectators,after which the problem stops.Frieda refuses to pay the security officer.Is there sufficient consideration in this agreement?

A) Yes,because the detriment of paying $100 was bargained for.
B) Yes,because there was one party who suffered a detriment.
C) No,because this agreement violates public policy.
D) No,because one of the parties did not suffer legal detriment.
E) Yes,so long as $100 is a fair price for the services of the security officer.