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
Aoic hiatus contains: 
Select and explain. 
A. Left gastric vein and thoracic duct, B. Thoracic duct and hemiazygos vein, C. Azygos vein and thoracic duct, D. Left vagus and thoracic duct
C: Azygos vein and thoracic duct
Answer: C: Azygos vein and thoracic duct 
Explanation: C i.e. Azygos vein and thoracic duct