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
Most non polar Amino Acid is 
Select and explain. 
A. Leucine, B. Glycine, C. Arginine, D. Lysine
A: Leucine
Answer: A: Leucine 
Explanation: Non-polar amino acids are very much less polar than polar amino acids.
Among the given options, only leucine is non-polar.