This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Back, Deltoid, and Scapular Region, Subject name: Anatomy
[{'content': 'Winging of scapula is due to paralysis of....nerve- \nSelect and explain. \nA. Long thoracic, B. Axillary, C. Radial, D. Median', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Long thoracic Nerve damagedEffect of lesionUpper trunk of brachial plexus (Erb's palsy)Policeman's tip hand or Porter's tip handLower trunk of brachial pexus (Klumpke's palsy)Claw hand, Homer's syndromeLong thoracic nerveWinged scapulaMedianPointing index, Ape thumb (simian thumb)UlnarClaw hand (ulnar claw hand)Median + ulnarClaw hand (complete claw hand)RadialWrist drop", 'role': 'assistant'}]