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: Pathology
[{'content': 'Carcinoma of lip \nSelect and explain. \nA. occurs mostly in females, B. metastases easily, C. occurs mostly in the lower lip, D. is mostly basal cell type', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]