The Nurse Explains to the Client That the Obstetric Conjugate

The nurse explains to the client that the obstetric conjugate measurement is important because:

A) The size of this diameter determines whether the fetus can move down into the birth canal so that engagement can occur.
B) This measurement determines the shape of the inlet.
C) The fetus passes under it during birth.
D) This determines the tilt of the pelvis.