This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Forensic Medicine
[{'content': 'On voluntary admission, the maximum number of days a person can be admitted as per mental health care act is: \nSelect and explain. \nA. 48 hours, B. 30 days, C. 60 days, D. 90 days', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]