The basic building blocks of proteins are
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Acitic Acid
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Gossipium Hirsutum
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Amino acids
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Fats and Vitamins
C
Correct answer
Explanation
Proteins are polymers composed of amino acids linked by peptide bonds. Acetic acid is a simple organic acid. Gossypium hirsutum is the scientific name for cotton. Fats and vitamins are completely different classes of biomolecules.