Which of the following statements provides the best analysis of what happened to detroit, michigan?

The decline of Detroit Michigan was due to the collapse of the auto industry.  The big manufacturers such as General Motors, Chrysler and Ford began transferring their operations outside the area.  Smaller manufacturers began to such down leaving many workers unemployed.  New technology, taxes and increased automation also contributed to the decline.

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.