Choose the sentence that goes against common sense.
Options:
- Sentence A: "relaxed mindset is a useful skill in marathon running"
- Sentence B: "cat walking is a useful skill in marathon running"
 Let's reason step by step:

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
Cat walking has no positive effect on running a marathon. Final answer: Sentence B.