It should be A! From research and analysis
The disruption in Atlantic shipping prior to and during the War of 1812 increased the manufacturing and this was the way it affected the United States economy. Since there was problem in importing products, so to balance it, the internal production was increased and this way the economy sustained that period.
It was the <span>departure of the Allied Nation of "Russia" in late 1917 was a turning point in the war, since Russia withdrew from the war due to an internal revolution, which brought about a new era of communism. </span>