Geologist: A geological fault in the mountain under which the proposed nuclear waste storage facility would be buried could, after a few thousand years, cause the contents to seep out or water to seep in. Since nuclear waste remains dangerous for up to 25,000 years, such seepage would be disastrous. So we mountain until scientists investigate whether this mountain has any geological faults.
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.
Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.