The Mother of a 6-Year-Old Child Brings Her Daughter to the Pediatrician's

The mother of a 6-year-old child brings her daughter to the pediatrician's office because she has had a sore throat, cough, and fever for several days. She reports a fever up to 104°F that worsens at night, but seems to respond to treatment with acetaminophen. The child has not been eating or drinking well because she says, "it hurts to swallow." She is ill appearing, and does not seem interested in playing with the toys that are in the examination room. The physician notes a thick, white exudate on both of the patient's tonsils, which also seem enlarged. A throat culture and complete blood count with differential is ordered.
-The nurse examines the child's tonsils while preparing to swab them with the culture swab.A white pustule coating is noted to be covering the tonsils.What is this pus composed of? 

A) Waste from red blood cells
B) Live bacteria
C) Fibrin threads
D) White blood cells and debris from phagocytosis