OK. You'll be given the following question. Please do chain-of-thought reasoning.
Which of the following two sentences does not make sense?
Options:
- Sentence A: "My doctor gave me the last dose of the injection yesterday."
- Sentence B: "My mechanic gave me the last dose of the injection yesterday."

user
A mechanic is not a medical personnel and cannot give anyone an injection.
Thus, the answer is Sentence B.
assistant