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': 'Medical certificate is - \nSelect and explain. \nA. Documentary evidence, B. Oral evidence, C. Hearsay evidence, D. Parole', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Medical certificate is the simplest type of written/documentary evidence.', 'role': 'assistant'}]