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
Ring worn infection affects – 
Select and explain. 
A. Dermis, B. Papillary layer, C. Stratum corneum, D. Prickle cell layer
C: Stratum corneum
Answer: C: Stratum corneum 
Explanation: None