To weaken the argument we need to show some evidence that introduction of New products by coolidge corporation won't hamper its sales.yellowho wrote:Can someone explain why C and D are wrong?
Lets consider option C states coolidge produces fewer brands of cereal than its competitor, lets visualize its mathematically suppose coolidge has 4 brands and its competitor has 10 brands, so if coolidge comes up with new brand, then there exist an equal chance of already existing coolidge customers to go for a new brand because we don't know content of new brand it might be possible that they're introducing new brand which is superior in quality than their already existing brand or they might target the brands of its competitors by introducing new brand, since we can't conclude with the surety about the target audience hence option C can be eliminated.
Option D states that some customer shifts brands irrespective of introduction of new brands, what about the others ?? i.e. say out of 100 20 are shifting brands but what about the rest 80 are they following the same trend?, or are they loyal towards their buyers?? apart from these questions one can also infer that even if coolidge won't introduce any new brand then also they are bound to loose some of its customer so hence can be negated.
i hope it helps.!!!

















