I want to say either diaries or fashion magazines. Diaries are much more story like and could be a little lathered up for lack of a better word. However I would go with fashion magazines, which talk about whatever's popular at the time, giving you a quick general outlook on the time period.
The first step was to plan out how and when you wanted to study. Then, you had to physically get together and talk about the topic you were studying, like by taking notes and reading articles. Then you needed to assess all of your group's notes and study them, too. Then, when the test or quiz came, you would be more prepared whereas if you didn't study at all.
C! I took this test too. The answer is definitely C.
