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': 'All are true about Raynauds phenomena except- \nSelect and explain. \nA. Exposure to cold aggravates, B. Spasm of vessels, C. More common in females, D. Atherosclerosis of vessels', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]