Answer:
In visual rhetoric, the choice of an unusual text font not only affects readability but also may prevent your message from getting through at all if the audience finds it too distracting.
Explanation:
So I normally use the word Climax but I'm assuming that climax and main action are the same thing. The main action is definitely (B) - Mary's husband tells her that he is leaving her, because that is what starts the suspense.
Please tell me if that isn't right, I think it is.