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: Surgery
[{'content': 'The most common clinical pattern of basal cell carcinoma is \nSelect and explain. \nA. Nodular, B. Morphea form, C. Superficial, D. Keratotic', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]