Following are the essential amino acid______________? September 27, 2025 by Admin A. Phenylalanine, Tryptophan lysine B. Phenylalanine, Arginine Methinonine C. Phenylalanine, Valine, Glycine D. Histidine, Glutamine, Valine ✅ The correct answer is option A. Phenylalanine, Tryptophan lysine.