When asking about books, I suggest using shmoop.com because it gives short but descriptive chapter-by-chapter summaries.
Answer:
Hello!
From the following sentences in the excerpt, the last option is a fragment.
d. "That's why I'm doing it"
Hope this helps!!
I think this is definitely WHO because the story is talking about a certain unknown character.
The second option is definitely more complicated
The answer is: B. person versus nature.
In the excerpt from "Stephen Crane’s Own Story," the narrator provides a detailed account of the extreme violence of the sea and their attempt to set a boat in motion. As a result, he describes the people's struggle against the power of nature during a frightening storm in the middle of the sea.