Which of the following values indicate normal poal venous pressure?

Normal poal venous pressure is 5 - 10mmHg (10 - 15cm saline). Poal venous system contributes 75% of blood and 72% of oxygen supplied to the liver. Poal vein is formed by the confluence of superior mesenteric vein and splenic vein. In an average adult 1000-1500ml /min of poal venous blood is supplied to the liver. Reference: Schwaz's Principles of Surgery 9e chapter 31.