This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical Jurisprudence, Subject name: Forensic Medicine
[{'content': 'Doctrine of common knowledge is a variant of \nSelect and explain. \nA. Medical maloccurence, B. Res ipsa loquitur, C. Novus actus interveniens, D. Calculated risk doctrine', 'role': 'user'}, {'content': "Answer: B \nExplanation: Doctrine of common knowledge Doctrine of Common Knowledge - It is based on the assumption that the issue of negligence in the paicular case is not related to specialized knowledge or technical matters of the medical profession, but an act involving application of common knowledge. - Expes may not provide evidence regarding matters of 'common knowledge'. - It is a variant of res ipsa loquitur", 'role': 'assistant'}]