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': 'Arrangement of lens from eye to source of light, in light microscope ? \nSelect and explain. \nA. Ocular lens : Subjective lens : Condensor lens, B. Subjective lens : Ocular lens : Condensor len, C. Condensor lens : Sujective lens : Ocular lens, D. Subjecive lens : Condensor lens : Ocular lens', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Ocular lens : Subjective lens : Condensor lens", 'role': 'assistant'}]