The correct option is B Teflon
Dacron, Nylon-66 and Novolac are prepared by condensation polymerisation.
Teflon is an addition polymer. Monomer of teflon is tetrafluoroethene.
nCF2=CF2Catalyst−−−−−−−−→High pressure [−CF2−CF2−]n
Tetrafluoroethene Teflon