We want an answer that contradicts the stimulus, not one that is irrelevant. The stimulus essentially states that if you’re restricting, then you preventing negative effects. TO contradict that,we negate it: Restricting AND not preventing negative effects. ...
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