Let's think step by step! Of the following two sentences, which one is against common sense?
Options:
- Sentence A: "Prague is an old city, it has been existed in Europe for more than a thousand years"
- Sentence B: "Prague is an old city, it has been existed in Europe for more than a trillion years"


user
This is impossible for many reasons, one being that the entire universe hasn't even been around that long. The answer: Sentence B.
assistant