An amino acid is made up of which of the following components? O A carbon linked to hydrogen, hydroxyl group, amino group, and a side chain. A carbon linked to hydrogen, amino group and carboxylic acid group. O A carbon linked to hydrogen, amino group, carboxylic acid group, and a side chain. O A carbon linked to hydrogen, hydroxyl group, amino group, and a carboxylic acid group. A carbon linked to hydrogen, side chain, amino group, and phosphate