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: Biochemistry
[{'content': 'Which method is used for reading large chromosomes 50-100 base pairs: \nSelect and explain. \nA. RFLP, B. Chromosome walking, C. PCR, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: RFLP', 'role': 'assistant'}]