The option that best demonstrates the progression of technology would be "<span>C. From handcart to horse-drawn carriage to automobile," since all these improved the efficiency of transportation in order. </span>
Caste is a form of social stratification characterized by endogamy, hereditary transmission of a lifestyle which often includes an occupational identity, ritual status in a hierarchy, customary social interaction, and exclusion based on cultural notions of purity and pollution.