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
Vascular inflow occlusion of the liver is by ? 
Select and explain. 
A. Clamping the hepatic aery, B. Occluding the poal vein, C. Clamping the hepatic veins, D. The Pringle manoeuvre
D: The Pringle manoeuvre
Answer: D: The Pringle manoeuvre 
Explanation: Ans. is 'd' i.e., The Pringle manoeuvre Pringle manoeuvre - placing an atraumatic clamp across the foramen of Winslow.