This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Extremity, Subject name: Anatomy
[{'content': 'Which structure is present/ content of arrow marked area? \nSelect and explain. \nA. Radial artery, B. Median nerve, C. Ulnar artery, D. Ulnar nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. Radial arteryThe arrow marked structure is anatomical snuff box and its content is radial artery', 'role': 'assistant'}]