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': 'Stratification specific keratins present in gingival epithelium are \nSelect and explain. \nA. K1, K2, B. K10, K12, C. K16, K6, D. K5, K14', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]