Waterways were extremely crucial is the Union plan tell you about the transportation in the South. Hence, option B is correct.
Which waterway was important to the North and South?
During the American Civil War, both the North and the South used control of the Mississippi River as a tactical and psychological advantage. Farmers in the Midwest had long relied on the river to convey their goods to the eastern states via the Gulf of Mexico.
In the early 20th century, a network of canals was built in order to convey large quantities of goods, people, and animals across rivers more quickly and affordably than by using boats. Both the Union's and the Confederacy's armed forces made substantial use of the railroads, which expanded quickly after 1830.
Thus, option B is correct.
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The options are missing in the question-
Waterways were not crucial.
Waterways were extremely crucial.
The South did not have a navy.
The South had extensive railways.
