This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Papulosquamous Disorders, Subject name: Skin
[{'content': 'A lady with bilateral buccal reticulate white streaks. Pain increases on intake of spicy food and patient gives no H/O tobacco but show amalgam on 3rd molar. Diagnosis? \nSelect and explain. \nA. Leukoplakia, B. Lichen planus, C. Aphthous stomatitis, D. Candidiasis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b. Lichen planusWhite reticulate pattern is commonly seen associated with lichen planus. History of amalgam filling in teeth is also suggestive of lichen planus.', 'role': 'assistant'}]