The least related to organism A is Organism D.
<h3>What is amino acid?</h3>
Amino acid is an organic compound made up of amine, carboxylic group and an organic R group.
Amino acids are the primary building block of proteins.
There are 20 types of amino acids are present.
Amino acids are necessary for the growth of the body.
Thus, the correct option is organism D.
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