A Family Medical History Conducted During a Well Baby Exam

A family medical history conducted during a well baby exam for a newborn girl reveals that hemophilia A, an X-linked recessive disorder, is present in males in three previous generations in the mother's family, whose father had the disease. What will the primary care pediatric nurse practitioner tell the parents about the risk of this disease in their children?

A) All of their sons will be affected by the disease.
B) Any sons they have will not be affected by the disease.
C) Daughters have a 50% chance of being carriers of the disease.
D) Their daughter has a 25% chance of having the disease.