I could be wrong, but my interpretation of the question is that you would explain any unintended or unconventional breaks in your education. So, things like a gap year during undergrad or having to leave college prematurely due to a family emergency, things like that. A gap between undergrad and law school is common enough that they probably don't need an explanation beyond what's in your personal essays.

What I've found to be helpful is it simply treat it like a fresh try. I don't look at the answer I gave before, I don't worry about time, I just try the problem again and make an effort to adjust my standard process to see if I missed anything. If I truly end up with the same answer again, so be it. But many times I have gotten great BR results doing it this way. I'm not only seeing what I get tripped up on, but how that led me astray and what process would help me better next time. Hope this helps you and good luck!