This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'C-Carbohydrate in Streptococcus hemolyticus is important for : \nSelect and explain. \nA. Lancefield classification, B. Phagocytic inhibition, C. Toxin production, D. Haemolysis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]