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
Diaphragmatic hernia can occur through all the following, EXCEPT? 
Select and explain. 
A. Esophageal opening, B. Costoveebral triangle, C. Inferior vena cava opening, D. Costal and sternal attachment of diaphragm
C: Inferior vena cava opening
Answer: C: Inferior vena cava opening 
Explanation: Diaphragm is embryologically formed by the fusion of septum transversum, dorsal mesentery and pleuroperitoneal membranes from the body wall. Congenital diaphragmatic hernia occur due to incomplete fusion of these structures. It mostly occur through: pleuroperitoneal canal, opening between the xiphoid process and costal origin of diaphragm and esophageal hiatus.