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
All of the following pass through Aoic opening in diaphragm, except: 
Select and explain. 
A. Azygos vein, B. Right phrenic nerve, C. Thoracic duct, D. Azygos vein
B: Right phrenic nerve
Answer: B: Right phrenic nerve 
Explanation: Right phrenic nerve