Drinking alcohol and driving is the greatest risk of driving fatalities
The blood vessels dilate to increase the "blood traffic" through the lungs to carry more oxygen to the muscle. The lungs work harder (faster respiratory rate) to increase the rate of oxygen/carbon dioxide exchange in the lungs.
D is the answer because physical ya something you do and social is like talking
Animal skin is the answer
Reaction to the outside environment and or reaction to stimuli.