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': 'Teacher slaps a student which results in permanent deafness, the injury is: AIIMS 09 \nSelect and explain. \nA. Simple injury, B. Grievous injury, C. Dangerous injury, D. Being a teacher it is not an illegal act', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Grievous injury', 'role': 'assistant'}]