Ties are worn around the base of the neck, and the neck is the flexible thin part that connects the head. I see position A as being well below the flex point, which would be like wearing the tie low on the shoulders. That's why I would prefer it at the bottom end of the joint, position C. One could reasonably argue that anything above where the body narrows down towards the neck is part of the neck, in which case A would also make sense.
Semantics on where a neck starts aside, position B is clearly at the top of the neck and is therefore just nonsense not even worth considering.
Also position C lets the tie hang neatly down the front of the body as it should, rather than dragging the ground or dangling loosely in midair.
Yeah, I don't think it would lose her a lot, but some. Little enough that it would be a notable net gain in her favor. I was just acknowledging that it's a non-zero amount. I'm voting for her, and it wouldn't bother me any either, as you probably assumed from me suggesting it. I do have opinions on gun control (neither more nor less, just make it better tuned), but I barely consider it when voting because I have much stronger opinions on social safety nets, capital's disproportionate influence, the health of the environment we live in, and so many other issues.