<span>Nomadic and agriculturists </span><span />
The answer is A
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Explanation:
<u>When drought occurs in such arid areas, the living conditions of local people become very difficult. In these conditions, the land yields no crops and water is insufficient for human consumption as well. People compete for the meager available resources. Pastoral communities are an example of this.</u>
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A. I hope this helped I am pretty sure this is the answer