I think it is (C) Most Mexicans remained poor while Americans invested in Mexico's unfair economy
mongols were engineers they developed taxes also as they expanded there empire
They used them by having the Indians work and change religions
There has always been slavery inside Africa.
(Sadly slavery is still in Africa today.)
Europeans sold goods that the kingdoms wanted.
The kingdoms kept pushing further and further into the interior.
This created a continuous cycle.
Whites were sold into slavery in Africa also.
(They were captured from barbery pirates in North Africa.)
