The LSAT is a very difficult test, such that even if you are very prepared you can do badly on a particular test. I took an LSAT for which I felt extremely prepared, and only got a 163, but then when I retook it I got a 171. Do not let one disappointing result make you think that you have not made progress-the in-the-moment, timed nature of the test means that you can mess up even if you are very prepared.

Why is "It represents no such thing" not understood to be the main conclusion? After all, it seems as if the last sentence of the manager's argument is a sub-conclusion.