What are the choices?
But I’m the 1920s the Great Depression really hurts the farmers after World War One and almost all farmers were in extreme debt and prices were falling and they needed to buy expensive machinery for their crops but couldn’t because of the debt and fallen prices
Hope this helps
Causation / a casual relationship
I assume this is split into four choices. Then it's the second one.
Average number of people in a given area.
Jefferson sent his representatives to France to conduct the Louisiana Purchase.