Which of the following is an acquired trait that is used to classify tribal societies?

livelihood categories

The correct answer is Option (3) → livelihood categories

"Classifications based on acquired traits use two main criteria – mode of livelihood, and extent of incorporation into Hindu society – or a combination of the two. On the basis of livelihood, tribes can be categorised into fishermen, food gatherers and hunters, shifting cultivators, peasants and plantation and industrial workers. However, the dominant classification both in academic 44 sociology as well as in politics and public affairs is the degree of assimilation into Hindu society. Assimilation can be seen either from the point of view of the tribes, or (as has been most often the case) from the point of view of the dominant Hindu mainstream. From the tribes’ point of view, apart from the extent of assimilation, attitude towards Hindu society is also a major criterion, with differentiation between tribes that are positively inclined towards Hinduism and those who resist or oppose it. From the mainstream point of view, tribes may be viewed in terms of the status accorded to them in Hindu society, ranging from the high status given to some, to the generally low status accorded to most."