Martha was once mugged on the subway, so now every time she enters the subway she
starts to shake and feel afraid. For Martha, the subway is a
A) filter
B) trigger.
C) dysfunction.
D) distracter.
E) noise.
A trigger is something that happens to you, or you see and it immediately, "triggers" a negative response in your brain, which is happening to Martha right now. Also process of elimination :)