A Woman Over 35 Has Already Borne a Child with Down

A woman over 35 has already borne a child with Down syndrome. She becomes pregnant again and immediately visits a genetic counselor for advice. If the woman wishes to abort the baby as soon as possible if the child has Down syndrome, the genetic counselor will suggest

A) amniocentesis.
B) ultrasound.
C) germline gene therapy as a prenatal treatment.
D) chorionic villus sampling.