Which of the following is not an example of a condensation polymer?

Amongst the following, how many of them come under the category of elastomers?
Natural rubber, polyethene, vulcanized rubber, bakelite, polyvinylchloride, Buna-$N$, Nylon $6$, Neoprene

Which of the following polymers are hard?

Which of the following is a condensation polymer?

Which of the following is a natural fiber-producing polymer?

Which of the following is not a semisynthetic polymer?