You Are Assisting a Vaginal Birth in the Field

You are assisting a vaginal birth in the field. After delivering the baby's head, you find that the umbilical cord is tightly wrapped around his neck two times. You should

A) slip your fingers between the cord and the neck and protect the airway as the rest of the baby is delivered.
B) tell the mother to stop pushing and transport with lights and siren.
C) unwrap the cord by gently slipping it over the baby's face and off of the head.
D) place two clamps on the cord three inches apart and cut in the area between the clamps.