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': 'Woods lamp examination gives _______ colour to lesions of vitiligo \nSelect and explain. \nA. Coral red, B. Green, C. Ivory white, D. Blue', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]