Genetic Testing Reveals That an African American Man and Woman $25 \%$

Genetic testing reveals that an African American man and woman who are engaged to be married are both carriers of the gene that causes sickle cell disease. When planning this couples follow-up
Counseling, the nurse should recognize what implication of this assessment finding?

A) There is a $25 \%$ chance that a child of the couple would have sickle cell disease.
B) The man and woman each have an increased risk of developing sickle cell disease later in life.
C) There is $50 \%$ risk of sickle cell disease for each of the couples children.
D) Their childrens risk of sickle cell disease will depend on a combination of genetics and lifestyle factors.