Let's Break this sentence!

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,
---->and if recognized and applied, students will become more effective
thinkers.
the second part of the sentence IF recognized is not parallel to the first part. the two assumptions should start with that

So Choices A, B and C are out

Choice D says "that if recognized and applied" who should recognized and apply? however, Choice E is clear that if students recongize and apply these skills, they (students) will become more effective thinkers.[/u]