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
Which structure is present/ content of arrow marked area? 
Select and explain. 
A. Radial artery, B. Median nerve, C. Ulnar artery, D. Ulnar nerve
A: Radial artery
Answer: A: Radial artery 
Explanation: Ans. A. Radial arteryThe arrow marked structure is anatomical snuff box and its content is radial artery