Answer:
One reason : Machines were too difficult for workers to use.
The democrats and republicans have influenced our current political system by sharing most of the same values and views with the American people. As their party members and those who associate themselves tend to lead more toward what the party wants.
A, because their enthusiasm makes them see something the way they want to instead of objectively, which means logically.
The England Great Depression occured, a.k.a The Great Slump
Britain's World Trade fell by half