Answer:
Zaroff has killed many people and will likely kill more if he isn’t stopped.
JUSTIFIED
Rainsford wants to win, but becoming a murderer gives the impression that Zaroff’s game is acceptable.
NOT JUSTIFIED
Rainsford believes that killing humans is murder.
NOT JUSTIFIED
Rainsford believes that killing humans is murder.
NOT JUSTIFIED
Zaroff keeps people as prisoners on his island, and his death will help set them free.
JUSTIFIED
Step-by-step explanation:
According to the story, "The Most Dangerous Game", Rainsford decides he's had enough and decides to kill Zaroff because Zaroff was already a murderer, keeps people prisoner, and was not trusted to keep to his promise of letting Rainsford go.