Pastoralism arose in africa during the classical era primarily in response to a) the dryness of the climate b) the abundance of grasslands c) the need for regional d) the presence of constant warface

A) the dryness of the climate

Explanation:

The harsh climate of Africa made it difficult for people to live on hunting or agriculture. The solution of which came to be seen in pastoralism. The unpredictable arid climatic leads many pastoralists to use drier areas in the wet season and then in the dry season they move to more humid areas. Pastoralism first developed in Africa around 7000 years ago due to long term climatic change.

the ansseer is going to be c i think