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
Reason for hot teeth is : 
Select and explain. 
A. Presence of lignocaine resistant sodium channels., B. Presence of abnormal neuroreceptors, C. Presence of tetradotoxin resistant sodium channels., D. Presence of lignocaine resistant K channels
C: Presence of tetradotoxin resistant sodium channels.
Answer: C: Presence of tetradotoxin resistant sodium channels. 
Explanation: None