Which of the following biomolecules does have a phosphodiester bond?

Nucleic acids are polymers of nucleotides. Two adjacent nucleotides are linked by phosphodiester bonds. The bond shows the polarity as 3’-5’. 
(1) A polypeptide is a linear chain of amino acids linked by peptide bonds. A peptide bond is formed between carboxylic group of fi rst amino acid and amino group of the subsequent amino acid. It is a C-N bond.
(3) Diglycerides have two fatty acid molecules esterifi ed to one glycerol. 
(4) In a polysaccharide, monosaccharide subunits are linked by glycosidic bonds represented as C–O–C bonds.