Gutenburg's printing press made books cheaper and available to a larger variety of people. Before the printing press, books were very hard to make and they took a long time to produce.
Cultural and psychological anthropology
I'm pretty sure the answer is D. poor working conditions, because people back then were very serious when it came to working, since they needed the money badly. All of the other answer choices are factors that led to the Great Depression.
Because buffalo were such big animals they could feed a lot of people and many of their parts came to use such as their hides and horns
