nylon -6,6
polystyrene
natural rubber
teflon
Teflon is tetrafluoroethylene. It cannot form H-bonds as H atom is not attached to N, O or F. Nylon -6,6 is a polyamide. It can form hydrogen bonds as H atom is attached to amide N atom. Polystyrene is a polymer of styrene. It cannot form H-bonds as H atom is not attached to N, O or F. Natural rubber is cis -1,4-polyisoprene. It cannot form H-bonds as H atom is not attached to N, O or F. Thus, the polymer containing strong intermolecular forces (e.g. hydrogen bonding) is Nylon -6,6. Hence, the correct option is B