A is a very unreasonable inference because since they are mean, they could do it whenever they like. It could mean to someone else, or even if you didn't stink, they'll still use that gesture.
B could be a very dangerous tone to choose from. You can easily tell from the voice, yet their expression may be a different inference.
C could not mean anything. It could take the last paragraph to infer.
In conclusion, it could be either B or C.
