As a group, we were BR'ing this question and we could not figure out what the difference was between AC "A" and AC "C". The correct answer seems to hinge on the difference between "Average" (AC C) and Sometimes (AC A). The Stimulus states "Usually a few inches..." to parallel the concept of "usually", why is "Average" closer than "Sometimes"?
https://classic.7sage.com/lsat_explanations/lsat-73-section-4-question-18/
I must say that this is very generous and true to the spirit of community. I am so impressed with this gesture. It reinforces my choice in using 7sage's service vs another LSAT prep service. Thanks for all the motivation, and showing us that 7sage is willing to go the extra mile to help us on our journeys' towards entering the field of law.