How does difference in livestock of Gollas and Kurumas Kurubas clarify their economic roles?

Correct answer: Gollas were linked with cattle buffaloes and Kurumas Kurubas with sheep goats

Pastoral communities often selected animals according to the land, climate, available grass, and products needed for exchange or use. Thus, livestock was closely connected with economic work. Cattle and buffaloes could provide milk, draft power, and other useful resources, while sheep and goats supplied wool, meat, milk, or animals for trade.

In the textbook example, Gollas were associated mainly with cattle and buffaloes, whereas Kurumas or Kurubas were associated with sheep and goats. This difference helps explain why their movements, grazing needs, and economic activities could differ. Therefore, option D is correct. The other choices deny the clear relationship between livestock and livelihood or describe unrelated occupations.