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': 'A patient was on DVT prophylaxis. All of the following has perforators which connect superficial veins to the deep veins except - \nSelect and explain. \nA. Ankle, B. Below inguinal ligament, C. Mid calf, D. Lower thigh', 'role': 'user'}, {'content': 'Answer: B \nExplanation: There are perforators at mid-thigh, knee, leg and ankle.', 'role': 'assistant'}]