I think it could either be b or c not sure which one
The Smith Act allowed deportation of an alien who had been "at any time" since arriving in the U.S. a member of, or affiliated with, such an organization. A second round of deportation hearings ended after ten weeks in June 1941.
There are many activities like Drawing and Painting that could lead to carrier change. Of course reading G.K. books or course books in the leisure time would help in some or the other way, but drawing, painting, cricket, football etc. can lead to a carrier change.
The answer is
b) 14
because after they are 12 months they start getting to notice a lot of different things.
I feel this is a concluding paragraph because it is summarizing the text.