All of the following were part of the Populist Party's program except A. a flat income tax—everyone pays the same rate or percentage
I believe the answer is A not sure
The Oregon Trail was the main trail out west by settlers to Oregon and California. There are other trails that made their way out west, but not all had the destination of Oregon and California.
Roman Britain is the period in classical antiquity when large parts of the island of Great Britain were under occupation by the Roman Empire. The occupation lasted from AD 43 to AD 410. Julius Caesar invaded Britain in 55 and 54 BC as part of his Gallic Wars.
I think the most suitable options are (1)closing of the western frontier or <span>(2)industrialization in the North and the Midwest. I think, I'd go with second one.</span>
