GMAT Critical Reasoning (CR) | Nursing schools cannot attract a greater number

Hi karant let me explain in the simplest mannner.
argument says
1) nursing not able to attact many due to LW & HS.
2) However this shortage lead to lowering entrance stds.
3) but it is clear that shortage or lower std would lead to difficutly in maintaining standards.
What does this imply?

Easy
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