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': 'Q-fever is caused by: \nSelect and explain. \nA. Rochaemelia Quintana, B. Coxiella burnetti, C. Mycoplasma hominis, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Q-fever is caused by Coxiella burnetti. Rickettsial disease: Disease Agent Epidemic typhus Murine typhus Scrub typhus Indian tick typhus RMSF Rickettsial pox R. prowazekii R.typhi R.tsutsugamushi R. conori R. rickettsia R. akari genital trat infections,infeility,aboion, postpaum fever, chorioamnionitis and lowbih weight of infants. M.hominis Q fever Trench fever Coxiella burnetii Baonella quintana, originally known as Rochalimaea quintana,/ "Rickettsia quintana"', 'role': 'assistant'}]