This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lipoproteins, Subject name: Biochemistry
Which of the following fatty acid present in fish-oil is known for its cardio-protective function? 
Select and explain. 
A. Arachidonic acid, B. Eicosapentaenoic acid, C. Linoleic acid, D. Palmitic acid
B: Eicosapentaenoic acid
Answer: B: Eicosapentaenoic acid 
Explanation: Eicosapentaenoic acid (EPA): o3 fatty acid Present in fish-oil Known for its cardio-protective action EPA inhibits the formation of thromboxanes (TX2) which are potent platelet aggregators. Hence, the intake of o3 fatty acids promotes platelet disaggregation.