This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Dental
[{'content': 'Complication of chronic Lichen planus \nSelect and explain. \nA. Dermatofibroma, B. Malignant melanoma, C. Basal cell carcinoma, D. Squamous cell carcinoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The complication of chronic lichen planus squamous cell carcinoma "Squamous cell carcinoma developing on oral lesions is uncommon but a potential danger, especially in ulcerated lesions" "There are repos of metastatic squamous cell carcinoma arising from long-standing lesions of hyperophic LP. Majority in lesions on the distal extremities Ref Harrison 20th edition pg 1256', 'role': 'assistant'}]