पाठ्यपुस्तके सञ्चिता सामग्री किसके अनुसार होनी चाहिए?

उत्तर: (C) छात्राणां शारीरिक-मानसिकस्तरानुसारम् / Students' physical-mental level — Textbook content should match students' physical and mental development level, ensuring age-appropriateness and cognitive readiness. This follows the pedagogical principle of teaching according to the...