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': 'All of the following conditions of defence available to a doctor against an allegation of negligence except- \nSelect and explain. \nA. Medical maloccurrence, B. No fee for treatment charged, C. Therapeutic misadventure, D. Res Judicata', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Free treatment of patient does not give immunity (defence) to doctor against negligence. \nMedical maloccurrence, therapeutic misadventure, Res Judicata and reasonable error of judgment can be used as defences against negligence.', 'role': 'assistant'}]