Multiple choice Which of the following is a set of nutritionally essential amino acids only? Alanine, Phenylalanine, Tyrosine, Tryptophan Glycine, Alalanine, Serine, Tyrosine Histidine, Tryptophan, Glycine, Alalanine Tyrosine, Histidine, Alalanine, Methionine Histidine, Tryptophan, Methionine, Phenylalanine Reveal answer Fill a bubble to check yourself E Correct answer Explanation Yes, it is the correct answer.