The Site of an Injury Like a Scratch or a Splinter

Multiple Choice

The site of an injury like a scratch or a splinter initially becomes red and painful.In some instances a yellowish thickened fluid may be present at the injury site.Commonly called pus,this fluid is

A) blood plasma and the dead neutrophils,macrophages,and bacteria that have accumulated at the wound.
B) the surviving bacteria that have been successful in avoiding the innate immune response.
C) dead body cells collaterally killed by the activation of the complement system.
D) the coagulated cytoplasm and hemoglobin produced by the blood cells injured during the infection.