The period that started 4000 b.c. is important because it is the period when the earliest civilizations flourished and inventions were made. Earliest known civilization arises in Sumer (4500–4000 B.C.<span>). Earliest recorded </span>date<span> in Egyptian calendar (4241 B.C.). Hope this answers the question. Have a nice day.</span>
Explanation:
development is a process that creates, growth, progressed, active change or the addition of physical, economic, environmental, social and demographic components.
I think it’s C
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