The answer is A, cause/effect. Marcia is focusing on how the war started, what ended it, and how it affected America. Cause/effect covers all these things, while the other answers either skip over these things completely or concentrate on only a few.
Answer:
Over Speeding.
Drunken Driving.
Distractions to Driver.
Red Light Jumping.
Avoiding Safety Gears like Seat belts and Helmets.
Non-adherence to lane driving and overtaking in a wrong manner.
Explanation:
And so is your teacher, isn't she?
Most authors make typos like the one mentioned in order to give you a clear image as to how the narrator tells the story and in what mood the theme is set.
Hope this helps!