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: Unknown
[{'content': 'False about Bacterial capsule is: \nSelect and explain. \nA. Prevents Phagocytosis, B. Stains by gram stain, C. Protects bacteria from lytic enzymes, D. Lost by repeated subcultures', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Slime has little affinity for basic dyes and is not visible in Gram stained smears. Special capsule staining\ntechniques are available, usually employing copper salts as mordants.', 'role': 'assistant'}]