Which of the following is/are formed by addition polymerisation of a single monomer? (One or more options may be correct.)

PTFE (from $\mathrm{CF}{}_2=\mathrm{CF}{}_2$) and PMMA (from methyl methacrylate) are chain-growth homopolymers. Buna-N is an addition copolymer of two monomers (acrylonitrile and buta-1,3-diene), and terylene is a condensation copolymer of ethylene glycol and terephthalic acid.