This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hernia and abdominal wall, Subject name: Surgery
Pascal's law is used in which technique of hernia repair? 
Select and explain. 
A. Lichtenstein mesh repair, B. Stoppa's preperitoneal repair, C. Bassini's repair, D. Darning repair
B: Stoppa's preperitoneal repair
Answer: B: Stoppa's preperitoneal repair 
Explanation: Stoppa's preperitoneal repair In Stoppa's preperitoneal repair, the expanding intra-abdominal pressure holds the mesh in place without suture fixation. According to Pascal's law, any additional pressure exeed upon an enclosed fluid mass is transmitted equally n all directions. Use of large mesh extending 3-5 cm beyond the edge of defect in all sides utilizes Pascal's law.