The correct answer is B) Germany used submarines to sink ships that sailed from America’s East Coast.
The main idea of this passage is that Germany used submarines to sink ships that sailed from America’s East Coast.
Operation Drumbeat was the strategies used by the German navy to attack all kinds of Allies ships with their powerful submarines. They sank warships and cargo ships that transported weaponry and supplies to the war front. This kinds of attack using submarines greatly favored the Germans in the war in the Atlantic Ocean.
The first engagement by African-American soldiers against Confederate forces during the Civil War was at the Battle of Island Mound in Bates County, Missouri on October 28–29, 1862.
The reason why surveying a different number of people or different population of people can possibly change the percentages that you calculated is because these surveys are simply "samples" of the general population as a whole, and are not exact in terms of their results given any random sample.
I believe southern colonies, but i COULD be incorrect <span />