GMAT Sentence Correction (SC) | In constructing a viable educational curriculum for the public schools

Focus shifts from X to Y , where X and Y MUST be || .

A)textbooks instructing the children toeducating the children with teachers -->Not ||

B)textbooks instructing the children to thechildren being educated by teachers -->Not ||

C) the instruction of children by textbooks to the education of children by teachers -->BEST Option

D)instruction of children by textbooks toteachers that educate the children

E) children that are instructed by textbooks to teachers that educate
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