Pyrogens Are Produced by Phagocytic White Blood Cells in Response

Pyrogens are produced by phagocytic white blood cells in response to infection. Pyrogens

A) increase the concentration of iron in the blood.
B) are the chemicals that triggers an inflammatory response.
C) relax the smooth muscle of arterioles delivering blood to the site of infection.
D) kill bacteria by digesting their cell walls.
E) initiate an increase in body temperature.