Answer:
Answer is Option B: They knew the lower Mississippi River was an important strategic location.
Explanation:
Control of the Mississippi River during the American Civil War was a crucial factor for both the North and the South. The river was an essential channel for the farmers who shipped their goods by the Gulf of Mexico to the eastern states.
The Union wanted to capture the Mississippi river along the southern positions. It tried to capture the New Orleans port and move North. They then joined Grant's army and head South of the river. Since it was a good location strategically, Union was interested in Louisiana during Civil war.
D) the United States and the Soviet Union
Out of all the answers, C is the most likely. Majority of our current forms of energy are nonrenewable resources. As such, we're using them all up.
Since there was a rise of Chinese national spirit at that time, the foreign imports were reduced, but merchants exported many goods and the Ming dynasty was one of the biggest traders in the world, if not the biggest. This period is known as one of the three golden ages of China.