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
[{'content': 'Opioid drug given by the above route is: \nSelect and explain. \nA. Sulfentanil, B. Remifentanil, C. Fentanyl, D. Alfentanil', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The route shown in above image is transbuccal route and the drug given through this route is Fentanyl', 'role': 'assistant'}]