To determine which organic compounds polymerize to form the polyester Dacron, we need to understand the chemical structure of Dacron.$\\$Dacron is a type of polyester, specifically polyethylene terephthalate (PET).$\\$It is formed by the polymerization of two monomers: terephthalic acid and ethylene glycol.$\\$Let's analyze the options:$\\$Option 1: Propylene and $para-HO-(C_6H_4)-OH \\$