This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Most common nerve damaged in CSOM is \nSelect and explain. \nA. II, B. III, C. VI, D. VII', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The facial nerve is most commonly damaged in CSOM because it traverses through the middle ear.Ref: Hazarika; 3rd ed; Pg 164', 'role': 'assistant'}]