One common wrong answer trap will seem to be on topic because it will address one of the premises, but it won't actually resolve the discrepancy between the two premises. This trap answer only goes Half Way because it doesn't address the discrepancy between the premises. Some of these will more obviously fall short, such as answer (D), While others will be tricker because they just don't go quite far enough, such as answer (A). if answer (A) had said that the margin of error was plus or minus 15 percentage points, it could have been the correct answer.