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: Dental
[{'content': 'Objective symptoms are determined by: \nSelect and explain. \nA. Visual and tactile inspection., B. Percussion., C. Palpation., D. All of the above.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Objective symptoms are determined by tests and observations performed by the clinician. These tests are as follows:\n\nVisual and tactile inspection\nPercussion\nPalpation\nMobility and depressibility\nBite test\nRadiograph\nElectric pulp test\nThermal tests (hot and cold)\nAnesthetic test\nTest cavity', 'role': 'assistant'}]