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
Essential fatty acids are all EXCEPT: 
Select and explain. 
A. Arachidonic acid, B. Linoleic acid, C. Palmitic acid, D. Linolenic acid
C: Palmitic acid
Answer: C: Palmitic acid 
Explanation: Palmitic acid