Amniocentesis Is Performed by Inserting a Needle Through the Mother's

Amniocentesis is performed by inserting a needle through the mother's

A) abdominal wall and into the amniotic sac to collect amniotic fluid.
B) cervix and collecting cells that lie in the amniotic fluid.
C) abdominal wall and collecting cells from the placenta.
D) abdominal wall, then the fetus' abdominal wall, in order to draw out fetal cells for testing.