Which statement is true: a. Chain polymerization and step polymerization produce polymers. b. The monomer of chain polymerization should contain a
C=C. c. The monomer of step polymerization should contain a
C=C. d. Step polymerization results in a backbone that has heteroatoms in it. e. A polymer produced by chain polymerization can have oxygen atoms in its side chains. f. f. all of the above g. g. all of the above except b h. h. all of the above except c