The correct answer is A. Both the Songhai and Mongol empires poured themselves into their military hierarchy to control the conquered regions.
Sickness was a big thing brought from there as we were not used to there sicknesses and we were not used to there's it's a lot like the Aztecs and the Spanish the Spanish brought small pocks
Some examples is the holocaust in 1933 and Armenia 1915
A scientific argument is when it had more examples of that certain argument. What I’m saying is that scientific arguments have more details and more evidence to why that answer is wrong or right. Regular arguments is when it is less detailed and just making predictions and theoretical analysis. (Hope this helps)
The Chinese Nationalists and the Chinese Communists united forces in 1926 to defeat the various war lords throughout the countryside of China who were keeping China in a state of semi-feudal anarchy.
One year later, Jiang Jie-Shi (CKS) and the Nationalists would stab the communists in the back in Shanghai, starting what would be a 20+ year-long civil war.