This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology (Haemophilus, Yersinia, Spirochaetes, Ricketssia, Chlamydia, Mycoplasma and Miscellaneous Bacteria), Subject name: Microbiology
[{'content': 'Orientia Tsutsugamushi causes: \nSelect and explain. \nA. Epidemic typhus, B. Endemic typhus, C. Scrub typhus, D. Q fever', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Disease Causative organism Vector Epidemic typhus R. prowazekii Louse Endemic typhus R.typhi Flea Scrub typhus Orientia Tsutsugamushi Mite Q fever Coxiella No ahropod transmission', 'role': 'assistant'}]