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 fatty acid have maximum hypocholesterolemic effect? 
Select and explain. 
A. Arachidonic acid, B. Linolenic acid, C. Linoleic acid, D. Oleic acid
B: Linolenic acid
Answer: B: Linolenic acid 
Explanation: Omega 3 fatty acids have maximum hypocholesteremic effects and found mainly in fish and vegetable oils.Of the fatty acids listed,linolenic acid is omega 3,linoleic and arachidonic acid is omega 6 and Oleic acid is omega 9. Ref: Heyland D.K., McClave S.A. (2005). Chapter 11. Nutrition in the Critically Ill. In J.B. Hall, G.A. Schmidt, L.D. Wood (Eds), Principles of Critical Care, 3e.