start by canceling out the answers it couldn't be
A, c
because it makes sense
A. building tables,
because I'm not sure how that will exactly help you in studying. However, in my opinion, the other three seem able to work.
Sorry if this answer is kind of late, but this is the first time in ages since I've logged on. Have a good night and life though! :3
A. summarizing, this would be the best way to help make sure she was comprehending the article
