What type of disorder is sickle cell anemia?
a. recessive
b. lung
c. dominant

A Recessive

Explanation:

Generally, there are two types of disorders, progressive and recessive. When something is recessive, it is not a dominant gene. The reason why sickle cell anemia is classified as a recessive disorder is because it only affects some people, but it does not affect all those who share DNA. Hope this helps!

b is the best answer for this question.