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': 'Chlamydiae are - \nSelect and explain. \nA. Viruses, B. Fungi, C. Protozoa, D. Bacteria', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Bacteria Chlamydiae are obligate intracellular bacterial parasites of humans, animals and birds.", 'role': 'assistant'}]