What Evidence Exists That the Preoptic Area Controls Body Temperature

Multiple Choice

 What evidence exists that the preoptic area controls body temperature?

A) After damage to the preoptic area, an animal will simultaneously sweat and shiver.
B) Each cell in the preoptic area has a temperature at which it is most active.
C) Removed cells maintain a constant temperature even in a cell culture.
D) Heating or cooling the preoptic area leads to sweating or shivering.