This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Aerial disorders, Subject name: Surgery
[{'content': 'All of the following features are present in acrocyanosis except : \nSelect and explain. \nA. Tend to affect young female, B. Painless, C. Episodic, D. Accompained by chillbains', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Acrocyanosis Painless Not episodic. Tends to affect young women Mottled cyanosis of the fingers/toes Accompanied by paraesthesia and chilblains.', 'role': 'assistant'}]