I don't understand your question.
The voice that you hear in a story is the voice of the narrator, and told either in first person or third-person. Details tell you how the narrator feels about the characters and events. From the first page of "How Mighty Kate Stopped the Train," I see that the story is told from the third-person point of view.
Answer:
Fremont opposes the practice of slavery in the territories.
Answer:
Sorry, I don't know the answer dude.
I just took that test too so the answer is B