You are examining different dietary supplements, trying to choose one for your child. Each supplement contains only four amino acids. Which supplement would be most suitable for your child's essential amino acid needs?

A)Supplement W containing phenylalanine, lysine, cysteine, and valine
B)Supplement X containing alanine, arginine, tyrosine, and serine
C)Supplement Y containing tyrosine, lysine, glycine, and asparagine
D)Supplement Z containing arginine, histidine, lysine, and methionine