Answer the following question, with explanation first. Of the following two sentences, which one is against common sense?
Options:
- Sentence A: "he put the tree he just bought into the vase"
- Sentence B: "he put the flowers he just bought into the vase"

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 tree would not fit in a vase.
So, the answer is Sentence A.