This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Microbiology Pa 1 (History, Microscopy, Stains and Structure and Physiology of Bacteria), Subject name: Microbiology
[{'content': 'Arrangement of lens from eye to source of light, in light microscope \nSelect and explain. \nA. Ocular lens: Objective lens: Condensor lens, B. Objective lens: Ocular lens: Condensor lens, C. Condensor lens: Objective lens: Ocular lens, D. Objective lens: Condensor lens: Ocular lens', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]