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
Normal epidermal - melanin unit is 
Select and explain. 
A. 1:32, B. 1:54, C. 1:36, D. 1:38
C: 1:36
Answer: C: 1:36 
Explanation: Each melanocyte transfers melanin to 36 keratinocytes forming the epidermal melanin unit (1:36).