<span>b. the Germans’ use of unrestricted submarine warfare-because the Germans sank many of America's non-military ships using submarines</span>
Answer:
the meaning is like to look at the culture and admire it, and you want to know more about it.
Explanation:
In the early 1900's, 6 million African Americans emigrated form the rural south of the US to the northeast, mid-west and west and thus began an urban existence in many of the cities in these areas so became important politically due to their numbers and their strong support of the civil rights movement later on.
