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: Anatomy
[{'content': 'Not a pregnant Neuronal structure among the fallowing\nis \nSelect and explain. \nA. Optic nerve, B. SA node, C. Common peroneal nerve, D. Sciatic nerve', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Pregnant Neuronal structure is a neuronal structure with an artery running through it. They are\n\nOptic nerve\nSAnode\nSciatic nerve', 'role': 'assistant'}]