Correct Answer - B
`underset("Lactic acid")(HO -underset(CH_(3))underset(|)overset(H)overset(|)C-COOH) + HO - underset("glycolic acid")(CH_(2) - COOH) to underset("Dextron")[[O-underset(CH_(3))underset(|)(CH)-overset(O)overset(||)C-O-CH_(2) -overset(O)overset(||)C]]-+nH_(2)O`