This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Physiology
Esters of fat-soluble vitamins are digested by: 
Select and explain. 
A. Pancreatic lipase, B. Cholesterol Esterase, C. Colipase, D. Carboxypeptidase
B: Cholesterol Esterase
Answer: B: Cholesterol Esterase 
Explanation: Ans. B Cholesterol EsteraseRef: Ganongy 25th ed. pg. 482Cholesterol esterase is a pancreatic lipase activated by bile acids. It causes the following actions* Hydrolysis of cholesterol esters* Hydrolysis of esters of fat-soluble vitamins* Hydrolysis of phospholipidsMost of the fat digestion begins in the duodenum and pancreatic lipase is the most important enzyme. Colipase is activated by trypsin and allows lipase to remain associated with droplets of dietary lipid even in the presence of bile acids.