Answer be C.
Samantha is creating an article from the 1700s and 1800s. One source provides information from the 1900s to modern day, therefore doesn't work in this case. So the choice of C doesn't work.
I've got some great ones.
Classics:
- Pride and Prejudice - Jane Austen
- A catcher in the Rye - J.D Salinger
- The Great Gatsby - F. Scott Fitzgerald
- To Kill a Mockingbird - Harper Lee
Good books
- Jodi Picoult books (if you are a girl XD)
- Divergent trilogy - Veronica Roth
- John Green books
- The Hunger Games trilogy - Suzanne Collins
- The Maze Runner Trilogy - James Dashner
.. Just to name a few.
If you want to explain to a foreigner how to learn when to use these words, you can say that the go from more general to more specific (in: more general, at: more specific).
in: for objects inside other objects, or for location in a big context: year, country,
on: on top of other objects, or for location in middle-scale contexts: day, street
at: for location on a very small scale: moment (exact time), at specific address<span />