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: Surgery
Which of the above immuno-nutrients are required more in the conditions of stress ? 
Select and explain. 
A. 1 and 3 only, B. 2 and 4 only, C. 1, 2 and 3 only, D. 1, 2, 3 and 4 only
D: 1, 2, 3 and 4 only
Answer: D: 1, 2, 3 and 4 only 
Explanation: Ans. is 'd' i.e., 1, 2, 3 and 4 only Immune enhancing enteral formulas: Immune enhancing formulas are foified with special nutrients which enhance immunity. These are? - glutamine - arginine - branched chain amino acids - omega-3 fatty acids, - nucleotides - beta carotene