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 presents with defective adduction of the hip joint and pains in the hip and knee joint. Which nerve is involved - \nSelect and explain. \nA. Obturator nerve, B. Femoral nerve, C. Saphenous nerve, D. Sciatic nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Adductor compartment is supplied by obturator nerve.', 'role': 'assistant'}]