This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
[{'content': 'Nerve supply of rhomboides major \nSelect and explain. \nA. Spinal accessory nerve, cranial pa, B. Spinal accessory nerve, spinal pa, C. Dorsal scapular nerve, D. Thoracodorsal nerve', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Dorsal scapular nerve arising from the nerve root C5 supplies both rhomboides major and minor. Rhomboides major retract the scapula. B D Chaurasia 7th edition Page no : 65', 'role': 'assistant'}]