Explain simply why Sentence B is the correct answer to: Of the below sentences, which one does *not* make sense?
Options:
- Sentence A: "He tripped over a rock on the sidewalk."
- Sentence B: "He tripped over a hippo on the sidewalk."
. Explanation:

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
A hippo is too big to trip over.