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: Social & Preventive Medicine
[{'content': 'Vector of scrub typhus in man ? \nSelect and explain. \nA. O. tsutsugamushi, B. Leptotrombidium deliense, C. Lice, D. Pediculous humanus', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Leptotrombidium deliense o For scrub typhus :- Causative agent R. tsutsugamushi Vector trombiculid mite (Leptotrombidium delinese and L. akamushi)", 'role': 'assistant'}]