It was significant because he showed that it was possible for the government to put down violent resistance and that no people shall ignore the law. Of course, the tax was still difficult to collect, but the people at least knew that they couldn't just pick up arms and easily oppose what they wanted.
The first answer is the best answer so pick A
He was banished from the Massachusetts bay colony because he said that government had no authority over the personal opinions of individuals.<span />
"c) rise in the demand for consumer goods" is the best option in terms of what affected the American economy immediately after world war 1, since this was a time of great prosperity.