Which of the Following Is True About the Infant's Production

Which of the following is true about the infant's production of stress hormones during childbirth?

A) Stress hormones cause the mother to breathe deeply,increasing the oxygen supply to the baby.
B) Stress hormones activate certain neural pathways in the brain,causing the baby to be alert and actively work its way down the birth canal.
C) Stress hormones cause the cervix to thin and the uterine wall to contract.
D) Stress hormones prepare the baby to breathe effectively by causing the lungs to absorb any remaining fluid and by expanding the bronchial tubes.