Choose the scenario that best illustrates how hair keeps you healthy and free from germs.
a. a person with a thick head of hair usually get fewer colds than someone who is bald because their head stays warmer during cold weather.
b. a person with thicker nose hairs probably filters out more dust and irritants from their lungs than those with thinner nose hairs.
c. a person with excess body hair often stays healthier than one with very little hair since less dirt gets onto their skin.
d. a person with thick eyebrows will have better eyesight since the hairs better protect the eyes from damaging sunlight.