Breastfed infants are than babies who are fed infant formula.
a. more likely to have diarrhea
b. less likely to have cystic fibrosis
c. more likely to have respiratory infections
d. less likely to have ear infections

The answer is D - Less Likely to have ear infections.

Smoking damages the respiratory system by inhalation of a foreign substance, that is absorbed and residue is left behind on our lungs sponge like substance. the gas that is inhaled also increase your blood pressure and dilates your blood vessels. also the process of inhaling and exhaling the smoke it causes irritation to the throat and mouth. smoking can cause lung cancer and other respiratory and circulatory diseases.