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': 'Actinic keratosis is associated with – \nSelect and explain. \nA. Basal cell carcinoma, B. Squamous cell carcinoma, C. Malignant melanoma, D. Epithelial cell carcinoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Acnitic keratosis may progress to invasive squamous cell carcinoma.', 'role': 'assistant'}]