The Mother of a Child with Cystic Fibrosis Says, "No

The mother of a child with cystic fibrosis says, "No one in our family has ever had cystic fibrosis. Why did it suddenly appear in my child?" What information should the nurse offer this mother?

A) "While all people carry the gene for cystic fibrosis, those who develop the disease have a mutation in that gene."
B) "A small percentage of the general population carries the gene for cystic fibrosis. If two carriers have children, 25% of those children will develop the disease."
C) "One in four people carries the gene for cystic fibrosis. If two carriers have children, 25% of those children will develop the disease."
D) "Some people carry the gene for cystic fibrosis. Of those carriers, one in four will develop the disease."