(A) Enslaved peoples of the world rebelled against their Imperial masters
(B) ** Competition between Europe’s great powers over control of foreign empires led to tensions
(C) Natural resources from these empires allowed countries to build up vast armies
(D) It didn’t help cause World War One
EXPLANATIONS BELOW
Concept note-1: -The expansion of European nations as empires (also known as imperialism) can be seen as a key cause of World War I, because as countries like Britain and France expanded their empires, it resulted in increased tensions among European countries.