This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'Roof of Anatomical snuff box is related to \nSelect and explain. \nA. Radial aery, B. Basilic vein, C. Superior Branch of radial nerve, D. Superior branch of ulnar nerve', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The name \'snuff box\' originates from the use of this surface for placing and then sniffing powdered tobacco, or "snuff" Anatomical Snuffbox boundaries Lateral wall Abductor pollicis longus (APL) Extensor pollicis brevis (EPB) Medial Wall Extensor pollicis longus (EPL) Roof Cephalic vein Superior branch of radial nerve Floor Radial styloid, scaphoid, Trapezium and 1st Metacarpal Only content: Radial aery. Ref: Gray\'s Anatomy 41st edition Pgno: 893', 'role': 'assistant'}]