It's C
The north had the money, the people, and the industrial power to branch out the railroad networks. So following markets and money. The north built networks to the west.
The south in contrast was did not have the capacity to construct as much railroads as the north did so therefore there was less western expansion. As well the south had more interests building canals and shipping product of the states to England.
In 1917, Germany, determined to win its war of attrition against the Allies, announced the resumption of unrestricted warfare in war-zone waters. Three days later, the United States broke diplomatic relations with Germany, and just hours after that the American liner Housatonic was sunk by a German U-boat.
The CPI or Committee of Public Information/Creel committee was founded during WW1.
It was an independent US government agency, headed by George Creel. It was established April 13, 1917.
The CPI had a solid purpose; The goal was to gain influence over the public opinion, in order to gain US support and US participation in WW1.
<span>Primary sources are first-hand accounts of a topic while secondary sources are any account of something that is not a primary source. Published research, newspaper articles, and other media are typical secondary sources. Secondary sources can, however, cite both primary sources and secondary sources.
</span><span> Hope this helps :) :)</span>