A young couple wants to have kids, but the wife (Ariel) is hesitant.

A young couple wants to have kids, but the wife (Ariel) is hesitant. Her father, aunt, paternal grandmother had Huntington's Disease (an autosomal, dominant genetic disease that follows simple inheritance, resulting in nerve cells of the brain breaking down over time) Ariel doesn't know if she has the mutation. Complete the Pedigree.