Still trying to get you to understand the story
The detail that best reveals that Mr. Rainsford opposes Zaroff's idea of the ideal prey is Mr. Rainsford's response near the end of the passage when he states that he is a hunter, not a murderer. This statement shows the reader that Mr. Rainsford believes that Zaroff hunting humans as prey makes him a murderer.
Answer:
confusion helps you grow but not speaking up makes you behind. that can be a start. that is how I would start and go from there:))