Answer:
Character vs. society.
Step-by-step explanation:
Character vs. self: Mr. White knows the dangers of using the monkey's paw, but continues to take the risks. He struggles with conflicting thoughts about whether or not the risks outweigh the pros.
Character vs. nature: Mr. White is punished by interfering with fate.
Character vs. character: Sergeant-Major Morris warns Mr. White about the misfortune that the paw causes by wishing from it. Mr. White ignores his advice and uses the paw anyway.