question: Q:A previously healthy 17-year-old boy is brought to the emergency department because of fever, nausea, and myalgia for the past day. His temperature is 39.5°C (103.1°F), pulse is 112/min, and blood pressure is 77/55 mm Hg. Physical examination shows scattered petechiae over the anterior chest and abdomen. Blood culture grows an organism on Thayer-Martin agar. Which of the following virulence factors of the causal organism is most likely responsible for the high mortality rate associated with it?? 
  {'A': 'Lipoteichoic acid', 'B': 'Lipooligosaccharide', 'C': 'Immunoglobulin A protease', 'D': 'Toxic shock syndrome toxin-1', 'E': 'Erythrogenic exotoxin A\n"'},