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': 'In morphogenic stage of amelogenesis \nSelect and explain. \nA. Inner enamel epithelium shows short columnar cells, B. Correlates with late bell stage of enamel formation, C. Both, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]