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
Keratin specific to epidermal type differentiation are 
Select and explain. 
A. K1, K2, K10, K12, B. K1, K3, K10, K12, C. K1, K2, K10, K13, D. K1, K2, K11, K13
A: K1, K2, K10, K12
Answer: A: K1, K2, K10, K12 
Explanation: None