Interesting. You're positive the NA isn't actually necessary? I'm curious about these examples. I didn't look closely at it, but PT 71.S1.Q11 seems to be about pollution. Is that the right reference? PT means PrepTest, right?
I think you may be talking about Section four and not section two. S4 has the psychic power question:
https://7sage.com/lsat_explanations/lsat-77-section-4-question-20