This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Medicine
[{'content': 'The most common location of spider nevi is \nSelect and explain. \nA. Abdomen, B. Back, C. Neck and shoulder, D. Upper and lower extremities', 'role': 'user'}, {'content': 'Answer: C \nExplanation: <img src=" /> Ref image - Internet (Researchgate.net)', 'role': 'assistant'}]