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: Pediatrics
Which among the following is an impoant fatty acid present in breast milk essential for growth? 
Select and explain. 
A. Docosahexaenoic acid, B. Palmitic acid, C. Linoleic acid, D. Linolenic acid
A: Docosahexaenoic acid
Answer: A: Docosahexaenoic acid 
Explanation: Docosahexaenoic acid and eicosapentaenoic acid are omega 3 fatty acids which are impoant constituents of the communication membranes of the brain, and they are necessary for normal brain development. They are also active in the retina of the eye. Docosahexaenoic acid is formed from linolenic acid. Linolenic acid is an essential fatty acid present in the breast milk. It is the staing material for the synthesis of eicosapentaenoic acid and Docosahexaenoic acid. Biochemically impoant omega 3 and 6 fatty acids: Omega 3 acid Omega 6 acid Linolenic acid Linoleic acid Eicosapentaenoic acid Arachidonic acid Docosahexaenoic acid Ref: Organic and Biological Chemistry By H. Stephen Stoker page 301