Answer:
1. War and insecurity 2. Economic crisis (poverty) 3. Overpopulation
Explanation:
1. War and insecurity - as example Syrian crisis and war against ISIS
2. Economic crisis (poverty) - mass immigration from Poland to USA in the late XIX and early XX century.
3. Overpopulation - mass immigration to Europe from African countries in the last few decades.
I think it is D if A is the top and D is the bottom
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The platform also called for a graduated income tax, direct election of Senators, a shorter workweek, restrictions on immigration to the United States, and public ownership of railroads and communication lines. The Populists appealed most strongly to voters in the South, the Great Plains, and the Rocky Mountains.
“Prince Henry the Navigator Finding a Water Route to Asia. Portugal took the lead in the search to find the first water route to Asia. ... The Portuguese were the first Europeans to explore the unknown world, and they were the first to sail around the southern tip of Africa.””