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': 'A doctor is not held guilty of negligence if \nSelect and explain. \nA. He has exercised reasonable care and skill, B. He has not obtained informed consent from patient, C. He fails to give proper instructions, D. Others sufferer disease from his patient', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Professional negligence: The failure to exercise reasonable care and skill of an ordinary prudent medical practitioner in the circumstances; a breach of duty to act with care appropriate to the situation, which resulted in bodily injury (harm/loss) or death of the patient.', 'role': 'assistant'}]