Correct Option (D)
Thehepatic portal veinis responsible for transportingnutrient-rich bloodfrom the digestive organs, including the stomach, small intestine, pancreas, and spleen, directly to the liver. This unique circulatory pathway allows the liver toprocess absorbed nutrientsand detoxify substances before they enter the systemic circulation.
Incorrect Options
The left hepatic artery and right hepatic artery (Options A and C) are branches of the common hepatic artery. Their primary function is to supply oxygenated blood to the liver tissue itself, not to carry nutrient-rich blood from the digestive tract.
The hepatic vein (Option B) carries deoxygenated blood away from the liver, draining into the inferior vena cava. It does not transport blood from the digestive organs to the liver.