Option 2: (D), (B), (A), (C) → This arrangement creates the logical sentence: "Education is the most powerful tool which can be used to empower individuals and transform societies, by providing knowledge, skills, and opportunities to build a better and more equitable world." The sentence follows proper grammatical structure with (D) as the subject and main clause, (B) continuing the predicate, (A) providing the method, and (C) completing the list → correct