Which of the biological covalent bonds is correctly associated with its description?

• A. Peptide linkage: Forms through dehydration synthesis connecting amino acids
• B. Ester linkage: Results from an oxidation reaction linking fatty acids
• C. Glycosidic linkage: Forms via hydrolysis reactions connecting monosaccharides
• D. Disulfide bridge: This occurs when oxygen atoms from two cysteine residues form a covalent bond

Answer: (A)