Have you ever used an LLM?
Here’s a screenshot I took after spending literally 10 minutes with chatgpt very confidently stating incorrect answers to a simple question over and over. (from this thread) Not only is it completely incapable of coming up with a very simple correct answer to a very simple question, it is completely incapable of responding in a coherent way to the fact that none of its answers are correct. Humans don’t behave this way. Nothing that understands what is being said would respond this way. It responds this way because it has no understanding of the meaning of anything that is being said. It is responding based on statistical likelihoods of words and phrases following one another, like a markov chain but slightly more advanced.
My first instinct was A, at the base of the neck. But now that I think about it I think I agree with this more. I think it could be argued that at the joint is where the neck really begins, and that the narrow part beneath that is still part of the body. And I think it would look better (and more professional!) if our weevil friend wore his tie there.