.parents sold their children, men their wives, and one brother the other and prisoners of war. So D, <em>purchasing children as slavees from their parents.</em>
Answer:
monarchy
This belief is known as divine right, which often has been associated with a monarchy, a form of government in which the power of the king or queen is hereditary.
Explanation:
There were actually four HUGE causes for WW1, treaties and alliances brought many countries into war, the imperialism of some countries scared other countries, and they were "defending" themselves, there was a lot of weapons stocking, and countries were creating gigantic armies, and that threatened other countries, and then we have plain old nationalism.
It is letter A the Mongols.
hope this helps
and fyi i am Turkish.<span />