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': 'Hypersensitivity is seen with following medicament? \nSelect and explain. \nA. CHX, B. Povidone iodine, C. Oxygenated water, D. Peroxide (H2O2)', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]