This asks to weaken the geologist's argument. I cannot wrap my head around why D is the correct answer. Someone please help!
https://7sage.com/lsat_explanations/lsat-74-section-1-question-23/
I watched the video.Yet I'm still stuck in (B). Any ideas and insight will be appreciated.
https://7sage.com/lsat_explanations/lsat-70-section-1-question-23/
In Prep-Test 76 the system scored me wrong on S1 Q18, when my answer matches the solution table supplied with the prep-test and other online resources.