Farming was possible because of the seasonal flooding and the river systems which help crops grow.
This is correct. Toxic loans and mortgages are at fault for the crisis during the 2000s. The banks gave mortgages and loans way higher than the assets were worth, so when people couldn't pay banks couldn't get the money back.
C. To prevent starving to death
This is what I think is the right answer
South Carolina was the first state to declare secession because of him because they believed, just like the nullification crisis, that Lincoln's policies were favoring north and were Against the south. Unlike the Jackson era where the thing in question was tariffs, here it was resolving about slavery.<span />
