I'm not completely shure but I don't think it was hope I helped :)
Well that is very cool that Annie went to that school
Answer:
Hey there!
I think the answer is A. Security. As America was expanding, people went to the west for more jobs, (opportunity) and more land. Thus, they were more free to do what they wanted.
Hope this helps :)
I think the answer is A...i may be wrong though...worth a shot lol