HELP ASAP!

Why is there such wide ethnic diversity within African Nations?
a. European soldiers wanted to mix the cultures as much as possible
b. only on ethnicity was forced into slavery in the 1700s
c. African leaders wanted to promote diversity to help the economy
d. africans were not allowed to draw their own political boundaries

Why the planet stays in orbit is because of inertia (object stays in motion until a force changes it’s motion) also the atmosphere and gravity!

The answer would be  b. hope this !

Ithink it’s a i’m not 100 percent sure though

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