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
A fatty acid that is not synthesized in man is: 
Select and explain. 
A. Linoleic acid, B. Oleic acid, C. Palmitic acid, D. Stearic acid
A: Linoleic acid
Answer: A: Linoleic acid 
Explanation: None