No, a preposition is often used to describe where usually following a noun, such as in, on, with, by, and etc.
"But" is a coordinating conjecture. Hope this helps.!
The Tone is achieved through word choice (diction), sentence construction and word order (syntax), and by what the viewpoint character focuses on. The Tone is created or altered by the way the viewpoint character/narrator treats the story problem and other characters, and by the way, he responds to the events surrounding him.
C. You're generating words that suggest possible sentences or paragraphs.
A prewriting activity for writing an essay, research paper or even a project is webbing. In webbing, you brainstorm various key words to suggest possible sentences or paragraphs. Often there is some order to webbing because you use lines and circles to connect ideas that are similar. Also, the main topic of the essay is in the center with all the subtopics and ideas radiating out. There is no chronological order to the webbing, and the web should be large enough to help with the entire essay, not just the theme.
I think you could pick both B and D in this situation. You didn't include the passage so I have nothing to go on here except my little knowledge of the story from when I read it.