You are called to a football game for a 15-year-old boy who is lying on the field, conscious and alert. It is August and the patient is complaining of weakness and cramping to his abdomen. He is breathing well and his skin color is normal and it is warm and moist to touch. Vital signs are normal. Treatment should include:

A) rapid cooling with ice packs to major pulse sites.
B) rapid fluid infusion of NaCl 0.9 percent to replace lost sodium.
C) gentle cooling by removing excess clothing and equipment.
D) high flow oxygen and aggressive fluid replacement.

C