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': 'Normal epidermal - melanin unit is \nSelect and explain. \nA. 1:32, B. 1:54, C. 1:36, D. 1:38', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Each melanocyte transfers melanin to 36 keratinocytes forming the epidermal melanin unit (1:36).', 'role': 'assistant'}]