I believe it is c but not quite sure
Well due to it being cold there could be two reasons, 1. Your skin is reallyyyyy dry, 2. When your capillaries expand, the surrounding nerves become stimulated and then sending messages to the brain
Don’t eat to much junk food and if you want to lose some weight these foods will help > eggs, avocado, fruit, oatmeal, vegetables. Drink lots and lots of water. If your not young work out 5x a week but if you are young I’d suggest 3x a week