Which of the Following Is Not True of Heat Production

Which of the following is not true of heat production and body temperature regulation in a person?

A) The higher the surface area to volume ratio in a person, the less heat escapes into the environment.
B) The greater the number of cells that a person has, the more heat is produced by the person.
C) Most heat loss occurs through the skin surface.
D) People and other warm-blooded animals must have proper methods of heat production and heat loss to keep their body temperature at its homeostatic level.
E) All of these are true of heat production and body temperature regulation in warm-blooded animals.