Answer: I think it would be B.
I am sorry if I am wrong.
They found that <span>Agreeableness was associated with greater volume in the fusiform gyrus, an area of the cortex specialized for perceiving faces.
This indicates that people that are more agreeable more nature tend to obtain the characteristic because they're better at identifying small facial expression that might reveal someone's characters.</span>
It is stored in your muscle memory. Muscle memory refers to the movements that your body has already stored in your memory because of constant practice and movement. Due to this, your body may just make a certain move even if you don't think about it.