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: Surgery
[{'content': "In winter's WAR line, Amber line represents the: \nSelect and explain. \nA. Relative depth of the III molar, B. Point of application of the elevator, C. Bone Level covering the impacted tooth, D. Axial inclination of the impacted tooth relative to II molar", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]