The Directive Principles of State Policy aim at establishing social and economic democracy through multiple welfare measures. They include provisions for free and compulsory education for children (Article 45), equal pay for equal work for men and women (Article 39(d)), and equitable distribution of wealth/resources (Article 39(b)(c)). Since all the options (A, B, C) are valid DPSP objectives, Option D 'All of the above' is the correct answer.