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: Medicine
[{'content': 'For measurement of long DNA molecules (50-100 KB) following is used \nSelect and explain. \nA. Chromosome walking, B. Nitch, C. RFLP, D. SSLP', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. RFLP', 'role': 'assistant'}]