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': 'Age at which one becomes major: PGI 09; MAHE 12 \nSelect and explain. \nA. 18 years, B. 21 years, C. 25 years, D. 35 years', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. 18 years', 'role': 'assistant'}]