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: Biochemistry
Which of the following is used to transport cholesterol from intestine to liver 
Select and explain. 
A. Apo E, B. Apo C, C. Apo A, D. Apo B
D: Apo B
Answer: D: Apo B 
Explanation: Apo B
Transport of dietary cholesterol from the intestine 

In the intestine, cholesterol esters and some unesterified cholesterol are incorporated into chylomicrons, which transports cholesterol and other dietary lipids from the intestine.
When triacylglycerol of chylomicrons is hydrolyzed by lipoprotein lipase in the peripheral tissues, cholesterol is not lost. Which is taken up by the liver in chylomicron remnants.
Thus, dietary cholesterol from the intestine to the liver is transported by chylomicrons-chylomicron remnants system.
The most important apoprotein of chylomicrons and chylomicron remnants is apo-B (apo-B48).