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': 'The femoral ring is bounded by the following structures except: \nSelect and explain. \nA. Femoral vein., B. Inguinal ligament, C. Femoral aery., D. Lacunar ligament.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Femoral aery', 'role': 'assistant'}]