Which of These Actions Happens During Fever

Multiple Choice

Which of these actions happens during fever

A) Endogenous pyrogen released from neurons of the cerebral cortex in response to an infection elevates the hypothalamic "set point."
B) Cold response mechanisms are initiated by the hypothalamus to raise the body temperature to the new "set point."
C) Heat loss mechanisms are triggered to eliminate the excess heat from the body.
D) The hypothalamus promotes skin vasodilation to rapidly increase heat loss.