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
TRPV1 antagonist (eugenol) acts by 
Select and explain. 
A. Decreasing permeability of Na+ ions, B. Inhibiting capsaicin, C. Inhibiting capsazipine, D. Increasing threshold of nerve
B: Inhibiting capsaicin
Answer: B: Inhibiting capsaicin 
Explanation: None