Because they were separated from their families and some were sent far away from families
The right answer for the question that is being asked and shown above is that: "D. they were trained to serve the sultan as cavalier soldiers." All of the following are true statement about the powerful African slaves known as the Mamluks EXCEPT D. they were trained to serve the sultan as cavalier soldiers.
The greatest cause of tension was that both Superpowers wanted to lead the world, and they had different concept for the way they wanted to do it.
So while there was a competition between the two, much as there is now between the US and Russia, there was also the conflict between capitalism that the US had and communism that the Soviet Union adopted.
This corresponds to the answer |different forms of government and economy"
The bering land bridge right? Which is attached to Asia & Canada?