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': 'Palmar interossei is supplied by \nSelect and explain. \nA. Superficial branch of ulnar nerve, B. Deep branch of ulnar nerve, C. Superficial branch of medial nerve, D. Radial nerve', 'role': 'user'}, {'content': "Answer: B \nExplanation: All palmar interossei are supplied by the deep branch of the ulnar nerve (C8, T1). Ref : B D Chaurasia's Human Anatomy, Seventh edition , volume 1 , pg. no, 124", 'role': 'assistant'}]