Oliver and Sofie Are Both 25 Years Old and Are

Oliver and Sofie are both 25 years old and are planning their first child. Sofie is worried about Down syndrome. What could Oliver tell her that would reassure her?

A) Women her age have a chance of 1 in 30 of having a baby with Down syndrome.
B) Only the age of the father influences the incidence of Down syndrome, and Oliver is well within the "safe" range.
C) While the age of the mother might be a factor in conceiving a baby with Down syndrome, the chances are reduced by taking high levels of folic acid.
D) Women Sofie's age have a chance of 1 n 1,700 of having a baby with Down syndrome.