Answer:
C sounds most accurate, however, most of the European countries were going to go to war regardless of colonies and such, the war was essentially unavoidable as everyone had gotten a bunch of new "toys" (i.e. new weapons) and as Europe does, they wanted to test them out on one another.
Explanation:
True, after WW2 the Germans lost 20ish percent of land.
The 3rd Answer choice
The Tariff of 1828 was designed to protect northern industry by raising the Europeans taxes. The South however, relied on European countries such as Britain, to import goods and export crops.
I believe the answer is...
The Treaty of Versailles
Japanese Expansion
Fascism
Appeasement
Great Depression and more ...hope that helped