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: Surgery
[{'content': 'Which among the following is not a feature of peripheral arterial occlusion? \nSelect and explain. \nA. Shock, B. Pallor, C. Pain, D. Pulselessness', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]