Explanation:

Option D is correct: Mahatma Gandhi's appeal among the poor, and peasants in particular, was enhanced by his ascetic lifestyle, and his shrewd use of symbols such as the dhoti and the charkha expressed profound concerns about the contemporary era, where machines were perceived to subjugate individuals and displace traditional labour. He envisioned the charkha as a representation of a humancentric society that refrained from excessively celebrating machinery and technological advancements. Additionally, he believed that the spinning wheel had the potential to offer marginalised communities additional income, thereby fostering selfsufficiency.