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: Pharmacology
[{'content': 'Which one of the following drug is effective in painful tingling sensation due to diabetic neuropathy: \nSelect and explain. \nA. Aspirin, B. Ibuprofen, C. Gabapentin, D. Tramadol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]