The following question refers to the topic of conflict and technology in the twentieth century.
Which of the following most accurately explains the increase in the scale and destructiveness of European warfare in the twentieth century?
A) The growth in representative government and democracy that allowed leaders to build broad support for military conflicts
B) The expansion of anti-colonialist movements that led to high-intensity conflicts over much of the globe
C) The increasing scarcity of natural resources that tended to magnify the intensity of international competition and conflict
D) The influence of nationalism and universalist ideologies such as communism that tended to expand war aims