This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
[{'content': 'Staphylococcus aureus virulence is due to \nSelect and explain. \nA. Pathogenicity correlated with coagulase, B. Endotoxin, C. Hemolysis, D. Pigmented colonies', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Staphylococcus produces two types of diseases: infections and intoxications. The virulence factors of Staphylococcus are: Cell-associated polymers Cell surface proteins Extracellular enzymes Toxins Extracellular enzymes include Coagulase, lipid hydrolase, hyaluronidase, and nuclease. Ref: Textbook of Microbiology; Ananthanarayanan and Panicker; 10th Edition; Page No: 203, 204', 'role': 'assistant'}]