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: Social & Preventive Medicine
Which among the following is a cardio-protective fatty acid? 
Select and explain. 
A. Palmitic acid, B. Stearic acid, C. Omega-3 fatty acids, D. Oleic acid
C: Omega-3 fatty acids
Answer: C: Omega-3 fatty acids 
Explanation: Omega-3 fatty acids reduce the incidence of CHD.