The answer is: C
This is because the graph indicates the sharp decline of the rural population, due to in large part to the increase in urbanization and the ever-growing industrialization of the United States throughout the decades.
As such we can analyze that, as the years go by the population trends to move to urban areas in place of rural ones.
<span>During the onset of the gold rush and growth of successful western miners, this set the stage for the Gilded Age because it led people to believe that striking it rich quickly through mining for gold would be a foolproof and easy way to make a living for oneself.</span>
Britain entered World War I in 1914 to honor a treaty that promised to defend Belgium and to fulfill an alliance with France and Russia. The Germans attacked Liege, Belgium, in the first battle of World War I, and then marched on to attack France.
I'm assuming by "war" you mean World War I
In the context of World War II, the 'Big Three' consisted of the leaders of the three most powerful countries on the side of the Allies. They were Winston Churchill, the Prime Minister of Great Britain, Franklin D. Roosevelt, the President of the United States, and Joseph Stalin, the Premier of the Soviet Union.
https://study.com/academy/answer/who-were-the-big-3-in-world-war-ii.html
The answer is "States now forbid operators of theaters, hotels, and restaurants to minority groups." They still have the right to refuse services to anyone they choose.