The correct answer is A. Thank You.
Answer
B.They are results of migration from Africa
Explanation:
Humans first evolved in Africa, and much of human evolution occurred on that continent. The fossils of early humans who lived between 6 and 2 million years ago come entirely from Africa. Most scientists currently recognize some 15 to 20 different species of early humans
noun
"a state formally cooperating with another for a military or other purpose."
verb
"combine or unite a resource or commodity with (another) for mutual benefit."
a simpler definition is a friend, comrade, or in general someone who you have something to gain from helping you for their own gain as well.
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