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': 'Home bleach is also called as: \nSelect and explain. \nA. Walking bleach, B. Thermocatalytic bleach, C. Power bleach, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Commonly used solutions for nightguard bleaching/home bleaching/walking bleach:\n\n10% carbamide peroxide with or without carbopol\n15% carbamide peroxide\nHydrogen peroxide (1–10%)\n\nIndications for home bleaching/night guard bleaching\xa0\n\nMild generalized staining\nAge-related discolorations\nMild tetracycline staining\nMild fluorosis\nAcquired superficial staining\nStains from smoking tobacco\nColor changes related to pulpal trauma or necrosis', 'role': 'assistant'}]