Which from following polymers is obtained by addition polymerisation method?

Step-by-step solution

Addition polymerization occurs when monomers join without eliminating small molecules, retaining all atoms from the monomer units in the polymer chain. Nylon 6 undergoes ring-opening polymerization, a subtype of condensation polymerization involving molecular elimination. Terylene is a polyester formed via condensation polymerization of ethylene glycol and terephthalic acid with water elimination. Nylon 6,6 is a polyamide synthesized through condensation polymerization of hexamethylenediamine and adipic acid, also