As a Treatment for Brain or Spinal Cord Injuries, Patients

As a treatment for brain or spinal cord injuries, patients are often initially chilled to lower their body temperature below normal. What good does this do?

A) They stay unconscious so they don't feel as much pain.
B) This slows metabolism and reduces swelling and pressure on the area.
C) A cold person's movements are much slower and less likely to cause further injury.
D) Your nervous system in general works better at cooler temperatures.
E) The rate of blood circulation slows, minimizing oxygen uptake and therefore energy use.