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: Surgery
True about sliding esophageal hernia in all cases ? 
Select and explain. 
A. Esophagus always sho, B. Cardia goes through hiatus, C. Cardia and fundus goes through hiatus, D. Peritoneal sac goes with paraesophageal hernia
B: Cardia goes through hiatus
Answer: B: Cardia goes through hiatus 
Explanation: Answer is 'b' i.e. Cardia goes through hiatus