To solve this problem, we need to identify which of the given amino acids is basic. Let's analyze each option:$\newline \bullet$Glutamic Acid:$\newline$ - Glutamic acid is an acidic amino acid. It has a carboxyl group in its side chain, which can donate a proton, making it acidic.$\newline \bullet$Lysine:$\newline$ - Lysine is a basic amino acid. It has an amino group in its side chain, which can accept a proton, making it basic.$\newline \bullet$Valine:$\newline$ - Valine is a neutral amino acid. It has a nonpolar side chain, which does not contribute to acidity or basicity.$\newline \bullet$Tyrosine:$\newline$ - Tyrosine is a polar amino acid with a phenolic group in its side chain. It is not considered basic.$\newline$Based on this analysis, the basic amino acid is Lysine.$\newline$Therefore, the correct option is Option 2: Lysine.