GMAT Sentence Correction (SC) | Re: QOTD: Critical-thinking instruction is predicted

Critical-thinking instruction is predicted on two assumptions: that there are clearly identifiable thinking skills that students can be taught to recognize and apply appropriately, andif recognized and applied, students will become more effective thinkers.

A. if recognized and applied, students - Parallelism issue - we need that after and
B. if these skills are recognized and applied, that students - Parallelism issue - we need that after and
C. if students recognize and apply them, that they
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