Answer:
Option (3).
Explanation:
Hepatic portal system consist of the veins that mainly comprise of hepatic portal vein and the tributaries of hepatic portal vein. This system is also known as portal venous system.
The main function of the hepatic portal system is the transportation of the venous blood from the spleen and gastrointestinal tract to the liver. The substance from the small intestine moves to this system before entering in the heart.
Thus, the correct answer is option (3).