Which statement is true regarding cystic fibrosis? It is autosomal-dominant. It affects endocrine glands. It is common in African Americans. It is the most common genetic disease in the United States.

The correct answer is - It is the most common genetic disease in the United States.

Explanation:

Cystic fibrosis is the genetic disease that affects the several body system and organ such as lungs and digestive system. This hereditary disease is autosomal recessive.

It is not common in ethnic populations such as African Americans and Asian Americans while in white population of US it is a very common genetic disease as it occurs in one individual in every 2500 to 3500 white infants.

Thus, the correct answer is - It is the most common genetic disease in the United States.

c is the answer : )               your welcome