If a Mammal Suffered Damage to the Temperature Sensor in Its

If a mammal suffered damage to the temperature sensor in its brain,what would be the result?

A) The integrating center would not receive inputs to compare to the set point.Body temperature could rise or fall to dangerous levels.
B) Only the integumentary system is required to sense temperature changes.Body temperature would remain stable.
C) The animal would have to rely on shivering instead of vasoconstriction to maintain body heat.
D) The animal would fall back onto a more primitive ectothermic mode of regulation.