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: Forensic Medicine
[{'content': 'Brain fingerprinting: PGI 06 \nSelect and explain. \nA. Used as lie detector, B. Uses EEG on lead, C. Used for quanta tive measurement of sulci and gyri, D. Uses DNA', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Uses EEG on lead', 'role': 'assistant'}]