Answer:
Um....hm...lemme see....let's say D. It seems to be the most reasonable.
Explanation:
The California gold rush turned "<span>San Francisco"</span> into perhaps the world's most diverse city.
It was in January 1848
when James W. Marshell at Sutter’s Mill in Coloma found a shiny metal (which
was gold). The news spread like a wild fire and it is said that an estimated
number of 300,000 folks flooded to California from around the US and abroad for
gold.
German Republic or November Republic
I think the reason for this transfer of residents might be caused by Dallas, Charlotte and Atlanta's favorable conditions of the black populations. They might have felt that they are better off living in this area. There must have been better laws that provide benefits and opportunities. These areas in the US have a big population of black people it helps them agree with each other.