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
As per MCI, minimum period for which a doctor should preserve his patient's record: JIPMER 13 
Select and explain. 
A. 2 years, B. 3 years, C. 4 years, D. 5 years
B: 3 years
Answer: B: 3 years 
Explanation: Ans. 3 years