I just scored a 175 on PT158.
I saw the post about this new feature and wanted to test it out. I feel pretty good about my LSAT progress so far, I have been working at it for a month or so and this is my fourth or fifth PrepTest I think. The main question/advice I am looking for is how to get past those level 5 difficulty questions? No matter how hard I try, they seem to be guaranteed wrong when I complete the test. Not struggling too much with the other difficulties though.

For A, does it not confuse kinds of things (species of amphibians) with things that are of those kinds (all amphibians). It is confusing the increase of number of species with an increase in total number of amphibians? I had originally answered E and I see how that is correct, but A also seems correct to me.