Which amino acid is most basic?
Lysine
Amino acids are classified as acidic or basic amino acids due to the presence of carboxyl and amino groups.
If the number of carboxyl groups are more then it is called as acidic amino acid and if the number of amino groups are more then it is a basic amino acid.
The explanation for the correct answer
(C) Lysine
The explanation for the incorrect answer
(A) Proline
(B) Serine
(D) Alanine
Therefore, the correct option is C.