I would say C is most likely the correct answer because all of the other options already exist and don’t work as well as we would like them to, but if you instill values in people, it is more likely to stick with them:)
Answer:
Give the reader and insight in the reason a character acts or chooses to do something
My best guess would be C, the publication of Lyrical Ballads. Not 100% sure though. hope it helps! ^_^
Ask your teacher trust me she will give you the explanation you are looking for;)