Must be E
Assume that it is an analogy type of argument, so our goal is to find any evidence or assumption that would point out on any other reason due to rats have died during the experiment.
Ans "A" is tempting however we don't know if rats were fed with lower dosages of painkiller the upshot would be different or not, believe that it's the main drawback of this option.
Assume that it is an analogy type of argument, so our goal is to find any evidence or assumption that would point out on any other reason due to rats have died during the experiment.
Ans "A" is tempting however we don't know if rats were fed with lower dosages of painkiller the upshot would be different or not, believe that it's the main drawback of this option.

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