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': 'True about mycobacterium leprae: \nSelect and explain. \nA. Transmitted by droplet infection, B. Phenolic glycolipid (PGL) is virulence factor, C. Generation time 12-13 days, D. All are true', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is. 'd' i. e., All are true", 'role': 'assistant'}]