Buying expensive items on credit is the correct answer.
D) provide electrical power to poor and rural regions of the U.S.
I believe that would be the answer because this group constructed power plants and dams in the impoverish areas of the U.S. during the Great Depression. (Plus I just answered a question similar to this.. :D)
The atlantic slave trade created an atmosphere wherein many people were
stripped away forcefully from their homes and their families, and forced
to move across the world in order to be mistreated and held against
their will conducting hard labor jobs that caused a great deal of
backlash.