This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S., Subject name: Medicine
What accounts for this patient's hand pain? 
Select and explain. 
A. Ulnar artery occlusion, B. Wrist fracture, C. Radial artery thrombosis, D. Carpal tunnel syndrome
C: Radial artery thrombosis
Answer: C: Radial artery thrombosis 
Explanation: Answer C. Radial artery thrombosisPeripheral ischemia resulted from interruption of radial artery blood flow at the wrist by a thrombosis.