Your Friends Are Considering Starting a Family and One of Them

Multiple Choice

Your friends are considering starting a family and one of them has Huntington disease. What can you tell the couple about the likelihood of giving birth to a child who also has Huntington disease?

A) They have a 10% chance of giving birth to a child with Huntington disease.
B) They have a 50% chance of giving birth to a child with Huntington disease.
C) They have a 75% chance of giving birth to a child with Huntington disease.
D) They have a 100% chance of giving birth to a child with Huntington disease.