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': 'Streptococcus cell wall resembles \nSelect and explain. \nA. Cardiac valves, B. Myocardium, C. Synol fluid, D. Intima of vessels', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Various structural components of Streptococcus pyogenes exhibit antigenic cross-reaction with different tissues of the human body.*Capsular hyaluronic acid- Human synol fluid*Cell wall proteins- Myocardium*Group A carbohydrates- Cardiac Valves*Cytoplasmic membrane antigens- Vascular intima*Peptidoglycans- Skin antigens(Ref: Ananthanarayan 9th edition, p212)', 'role': 'assistant'}]