It's A and B i know this probably does not help you now but that the answer for the future people that need it <span />
I only know one but one is in the European theatre and D-Day
Answer:
why do you think Noah's Ark worked? and how did all of the animals on that ark didn't eat each other, for they were stuck together for months?
The Causes and Spread of the Great Depression
Began peacefully but increased conflict as more settlers came and wanted more land for farming