Question: Which of the following sentences is nonsensical?
Options:
- Sentence A: "I stayed up all night last night, so my brain often crashes today"
- Sentence B: "I stayed up all night last night, so I am energetic today"

Please answer this question gradually:
user
Staying up all night means lacking sleep and rest and affects ones ability to think and be energetic. So the answer is Sentence B.
assistant