The Likelihood That a Woman Will Give Birth to a Child

The likelihood that a woman will give birth to a child with Down syndrome increases with maternal age. However, four out of five babies with Down syndrome are born to women younger than age 35. This is because women under 35

A) give birth to more babies.
B) have fewer miscarriages.
C) are less likely to receive good prenatal care.
D) engage in more behaviors that put the fetus at risk.
E) are unlikely to be offered genetic screening.