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': 'Structure forming medial boundary of femoral ring is: \nSelect and explain. \nA. Inguinal ligament, B. Pecten pubis, C. Lacunar ligament, D. Conjoint tendon', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Lacunar ligament', 'role': 'assistant'}]