The correct answer is: A) Article 40
Article 40 of the Constitution of India states that the State shall take steps to organize village panchayats and endow them with such powers and authority as may be necessary to enable them to function as units of self-government. It also states that the State shall endeavour to enlist popular cooperation in the management of village affairs.
Article 42 of the Constitution of India states that the State shall make provision for securing just and humane conditions of work and for maternity relief.
Article 43 of the Constitution of India states that the State shall endeavour to secure, by suitable legislation or economic organization or in any other way, to all workers, agricultural, industrial or otherwise, work, a living wage, conditions of work ensuring health and safety, and, as far as practicable, equal pay for equal work.
Article 48 of the Constitution of India states that the State shall endeavour to organize agriculture and animal husbandry on modern and scientific lines and shall, in particular, take steps for preserving and improving the breeds, and prohibiting the slaughter, of cows and calves and other milch and draught cattle.
Article 40 is the only option that specifically mentions cottage industries and village panchayats. The other options are more general in nature.