Answer:
A manor was the Lord's estate. Manors had to be self sufficient because of how dangerous it was to leave them. One way manors were self sufficient is that they had plenty of farms to grow crops. The manor was also self-sufficient because it provided small houses for the serfs.
Explanation:
B. unrestricted submarine warfare and the zimmerman telegraph
The Zimmermann Note, or telegram, was sent by German Foreign Minister Arthur Zimmermann. He sent it to his ambassador in Mexico and the goal was to get Mexico to become an ally of Germany. It said that Germany would, after it won the war, give the Southwestern US back to Mexico. The United States entered the war because of the Germans' decision to resume the policy of unrestricted submarine warfare, and the so-called "Zimmerman telegram."
D, because the answer is in the question : "a statistic is given that says how many boxcars could be filled with the garbage is dumped into earth's water..."
Answer: A
Explanation: Lincoln received no electoral votes from the South because he pledged to stop the spread of slavery, but not interfere in the South. So, he relied on the North which contained abolitionists who supported him and helped him win.