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
The opening through which the right phrenic nerve passes is: 
Select and explain. 
A. Aoic opening, B. Oesophageal opening, C. Vena caval opening, D. Directly pierces the diaphragm
C: Vena caval opening
Answer: C: Vena caval opening 
Explanation: Vena caval opening