Austria-hungary’s takeover of bosnia in 1908 was an example of how tensions increased when

Austria-Hungary’s takeover of Bosnia in 1908 was an example of how tensions increased when there is a "power void" in a region, since this is when ethnic rivalries can go "un-checked". 

C; large nations dominated small nations

Explanation:

edg2020

It developed as a reaction to the impact of european colonialism in africa on peoples of african descent. in the  mid-20th century, activists in africa adopted pan-africanism as a rallying cry for independence from colonial rule. some african pan-africanists sought to unite the continent as one independenthope it was useful