This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'True about palmar arch is \nSelect and explain. \nA. Deep palmar arch is formed by ulnar artery and deep palmar branch of radial artery, B. Superficial palmar arch is formed by Radial artery and palmar branch of ulnar artery, C. Superficial palmar branch is formed by ulnar artery and radial artery, D. Deep palmar arch is formed by radial artery and deep palmar branch of  ulnar artery', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Deep palmar arch is formed by radial artery and deep palmar branch of\xa0 ulnar artery.\nSuperficial palmar branch is formed by uinar artery and palmar branch of radial artery.', 'role': 'assistant'}]