Concept:The sentence must start with the subject and main action, then add details and the approach.Explanation:The National Education Policy-2020 envisages (main subject and verb).Part R ("a restructuring of existing curriculum") follows naturally as the object.Part P ("and pedagogy in schools and colleges") extends the object.Part S ("following the liberal approach") completes the thought by describing the guiding approach.Thus the correct order is R → P → S → Q, which matches option C.Answer:C. RPSQ