The major transportable form of amino acid is

Answer: Option D

The major transportable form of amino acid is Aspargine.
Asparagine is one of the important amino acids for the long-distance transport of nitrogen (N) in plants.
Asparagine is α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group, an α-carboxylic acid group, and a side chain carboxamide, classifying it as a polar, aliphatic amino acid.
It is non-essential in humans, meaning the body can synthesize it. It is encoded by the codons AAU and AAC.