This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Peripheral Nerve Injuries, Subject name: Orthopaedics
[{'content': 'Foot drop results due to injury to - \nSelect and explain. \nA. Tibial nerve, B. Common peroneal nerve, C. Anterior interosseus nerve, D. Posterior interosseus nerve', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Common peroneal nerve * Foot drop: Common peroneal nerve injury* Wrist drop: Radial nerve injury* Ape thumb: Median nerve injury* Claw hand: Ulnar nerve injury* Froment's sign: Ulnar nerve injury", 'role': 'assistant'}]