When a baby's head has delivered, you should immediately:
A. Apply vaginal pads to the perineal area to reduce the blood loss.
B. Massage the mother's uterus by kneading it to speed up delivery of the baby's body.
C. Insert a sterile gloved hand into the vagina to relieve pressure around the baby's neck.
D. Check the location of the umbilical cord and suction the mouth and nose.
Answer: D