Let's think step by step! Choose the sentence that goes against common sense.
Options:
- Sentence A: "Mars is the most suitable homeland for human beings"
- Sentence B: "Earth is the most suitable homeland for human beings"

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Earth is most suitable for humans, not Mars. The answer: Sentence A.