Question

the most common, deadly, inherited disorder affecting caucasians in the united states.
a. acute bronchitis
b. cystic fibrosis
c. asthma
d. influenza

Explanation:

Cystic fibrosis is a genetic disorder. Acute bronchitis is usually caused by infection (viral or bacterial). Asthma has a complex etiology including genetic and environmental factors but is not the most common deadly inherited disorder in US Caucasians. Influenza is caused by a virus.

Answer:

B. Cystic Fibrosis