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: Anaesthesia
Modified Allen's test is for checking the proper aerial supply at the 
Select and explain. 
A. Wrist, B. Arm, C. Elbow, D. Forearm
A: Wrist
Answer: A: Wrist 
Explanation: Ans. a. Wrist