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
Richter's hernia can be seen in all hernia except 
Select and explain. 
A. Femoral, B. Obturator, C. Epigastric, D. Para umbilical
C: Epigastric
Answer: C: Epigastric 
Explanation: None