In the copolymerization of vinyl chloride and vinyl acetate, what monomer feed composition is needed to produce a copolymer containing 5 mol% vinyl acetate? Note: Use the reactivity ratios.
a) [Vinyl chloride] = 95%, [Vinyl acetate] = 5%
b) [Vinyl chloride] = 50%, [Vinyl acetate] = 50%
c) [Vinyl chloride] = 80%, [Vinyl acetate] = 20%
d) [Vinyl chloride] = 5%, [Vinyl acetate] = 95%