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: Pharmacology
[{'content': 'Doxycycline is used in the treatment of the following diseases? \nSelect and explain. \nA. Leptospirosis, B. Q fever, C. Borreliosis, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]