In "The Most Dangerous Game," Sanger Rainsford says "I am a hunter, not a murderer" when he finds out that Zaroff hunts humans. Based on this statement, what can be inferred about Rainsford's ideas?
1 Rainsford thinks killing for sport is murder.
2 Rainsford believes killing humans is murder but has no problem killing animals.
3Rainsford believes Zaroff is a murderer because he hunts humans.
4Rainsford thinks Zaroff is a murderer because he kills exotic animals.
5Rainsford mocks Zaroff for thinking killing animals is the same as murder.