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
The term diphydont means: 
Select and explain. 
A. Second dentition, B. Two same sets of dentition, C. Two separate sets of dentition, D. More than two sets of dentition
C: Two separate sets of dentition
Answer: C: Two separate sets of dentition 
Explanation: None