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
In class -III Ellis fracture 
Select and explain. 
A. Only enamel is involved, B. Enamel and dentin are involved, C. Enamel, dentin and pulp are involved, D. Non-vital pulp
C: Enamel, dentin and pulp are involved
Answer: C: Enamel, dentin and pulp are involved 
Explanation: None