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
What is true about spigelian hernia 
Select and explain. 
A. It is seen in femoral triangle region, B. Occur only in male, C. It is due to defect in transversus abdominalis muscle and lies in between muscle layers, D. It always contains appendix
C: It is due to defect in transversus abdominalis muscle and lies in between muscle layers
Answer: C: It is due to defect in transversus abdominalis muscle and lies in between muscle layers 
Explanation: None