This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
Nerve most commonly injured in Mc Burney incision 
Select and explain. 
A. Subcostal, B. Iliohypogastric N, C. 11th thoracic, D. Ilionguinal
D: Ilionguinal
Answer: D: Ilionguinal 
Explanation: if direct right-sided inguinal hernia if present, during appendicectomy injury there will be ilioinguinal nerve injury. Reference SRB edition:5 page:994