This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Opioids and Alcohols, Subject name: Pharmacology
Opioid drug given by the above route is: 
Select and explain. 
A. Sulfentanil, B. Remifentanil, C. Fentanyl, D. Alfentanil
C: Fentanyl
Answer: C: Fentanyl 
Explanation: The route shown in above image is transbuccal route and the drug given through this route is Fentanyl