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': 'A female has a hypopigmented lesion on the centre of the forehead. Drug responsible is? \nSelect and explain. \nA. Hydroquinone, B. Ether metabolite of hydroquinone, C. Para tertiary butyl catechol, D. Para tertiary butylphenol', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Hypopigmented lesions in the centre of the forehead suggest chemical leucoderma with para tertiary butyl phenol. Which is a component of bindi. (Therefore hypopigmentation is on central head).', 'role': 'assistant'}]