One reason that more people didn’t foresee the economic collapse of the 1930s is that it came about so suddenly, with practically no warning, since the US economy throughout the 20s was thriving and "booming"--leading people to think that there were no issues whatsoever.
It would be "d. the proposal that Germany assume complete responsibility for the war" that Wilson opposed because he believed it might lead to future armed conflicts, since he thought this would make the Germans resentful, which was correct.
Generally speaking, in the mid-1800s, pioneers who traveled through the Great Plains to the West faced "<span>c. steep passes and difficult terrain" since this territory was wildly unpredictable and oftentimes dangerous. </span>
Francois Holland (the current president) has been named by many as the worst president France has ever had, though it's debatable and it's all based on your opinion, there is no certain answer. It really just depends on what you think on politics and what you think of which president made which decision