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: Orthopaedics
[{'content': 'Median nerve lesion at the wrist causes all of the following. except - \nSelect and explain. \nA. Thenar atrophy, B. Weakness of Adductor pollicis, C. Weaknes of 1st and 2nd, D. Weakness of Flexor pollicis Brevis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Adductor pollicis is supplied by ulnar nerve.\nAll other options are seen in median nerve palsy.', 'role': 'assistant'}]