Because the United States struggled to Unite and quell the rebellion, the answer is B. The United States realized it needed to be more centralized in order to deal with internal and external threats.
The invention of the steam engine impacted industry in a variety of ways, not the least of which involved the European exploration and colonization of the African continent. Transportation, in general, was improved, proving profitable to businesses which could now transport products easier and faster. Another change of importance involves the location needed for factories, which no longer needed close proximity to rivers for energy.
Question- How does a banking "monopoly" make the rich richer and the poor poorer?
Answer- Anti-Globalizers central claim is that globalization is making the rich even richer and the poor more poorer. Pro-Globalizers assert that it actually helps the poor people. In fact, a substantial part of the decline in poverty had already happened by the mid-1980s, before the big strides in foreign trade or investment.