In a GMAT AWA essay, identifying plausible alternative explanations for an observed phenomenon discussed in the argument primarily serves which purpose?

The correct answer to the question "In a GMAT AWA essay, identifying plausible alternative explanations for an observed phenomenon discussed in the argument primarily serves which purpose?" is Option C: To expose weaknesses in the argument's causal claims by suggesting other factors..

The other options — A) To demonstrate the essay writer's general knowledge and creativity., B) To strengthen the argument by offering additional supporting scenarios., D) To present a completely new, independent argument for the reader to consider. — are incorrect for this GMAT Exam Prep question. As explained above: Suggesting alternative explanations helps to undermine the argument's conclusion by showing that the observed phenomenon could be due to something other than what the argument claims, thus weakening …