The best explanation as to why direct democracy would not work well in the united states is that

Explanation:

Direct democracy is a form of democracy in which people decide on policy initiatives directly that is they make their own decisions. this kind of democracy cannot work well in the united states due to the population  which is too large.

hello!

according to the passage the most suitable options are two. the first one is "by leading the aef to victory in several key battles" like the battle of saint- mihiel and the battle of cantigny mentioned in the passage you copied here. the second one is "by the aef and allied forces defeat germany" since the passage says that his army destroy the german resistance in the meuse- argonne offensive. and also, "by insisting that the aef operate as an independent force".

hope this