A. Literary Movement
A literary movement is used to describe a trend in literature that is characterised by the shared assumptions, beliefs and practices of an influential group of writers. A literary movement consists of pieces of literary work from different authors but usually in the same era. They are all considered as a part of one literary movement because of similarity in ideas.
While respecting excellence it’s not enough to know everything or have all the knowledge in the world. Even so, with what knowledge we have we should use it.
It’s not that easy to learn how to play soccer you have to learn the rules and how things go.
I would go with D) It helps show the author's voice because the author is saying that the person is making him sad at night so u could say he is opening his feelings.