This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Peripheral Nerve Injury, Subject name: Orthopaedics
[{'content': "Froment's Sign is seen in: \nSelect and explain. \nA. Ulnar nerve palsy, B. Median nerve palsy, C. Musculocutaneous nerve palsy, D. Posterior Interosseous nerve palsy", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Froment Sign: In case of ulnar nerve palsy adductor pollicis supplied by ulnar nerve is paralysed. S o, patient holds the book between thumb and palm by using flexor pollicis longus (supplied by AIN nerve) . This produces flexion at inter-phalangeal joint, while holding book.', 'role': 'assistant'}]