The town of Springhill frequently must declare a water emergency, making it temporarily unlawful to use water for such nonessential purposes as car washing. These emergencies could be avoided if Springhill would introduce permanent economic incentives for water conservation. Actually, Springhill discourages conservation because each household pays a modest monthly flat fee and a substantial per-liter rate only after the threshold is reached.
What this question is testing
Your task
Find the choice that makes the argument's conclusion more likely to be true.
Common trap
Answers that are consistent with the argument but add no real support, or that strengthen a claim the argument doesn't make.
Winning move
Locate the gap between evidence and conclusion, then pick the choice that closes it.
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