This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
[{'content': 'From which of the following routes, absorption of local anaesthetic is maximum \nSelect and explain. \nA. Intercoastal, B. Epidural, C. Branchial, D. Cocaine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Refer Ajay Yadav 3/e p105 First local anesthetic to be used clinically was cocaine by Carl koller', 'role': 'assistant'}]