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': 'Dentist prescribed home applied bleaching technique uses: \nSelect and explain. \nA. 35% Hydrogen Peroxide, B. 10% Carbamide peroxide, C. 18% Hydrochloric acid, D. Sodium perborate', 'role': 'user'}, {'content': 'Answer: B \nExplanation: HOME BLEACHING TECHNIQUE/NIGHT GUARD BLEACHING\nCommonly used solution for night guard bleaching\xa0\n\n10% carbamide peroxide with or without carbopol.\n15% carbamide peroxide.\nHydrogen peroxide (1-10%).', 'role': 'assistant'}]