What is the MAIN reason the author includes the
section "The U. S. And The German U-Boat
Campaign"?
A. to show how the war at sea affected Americans
before the United States joined the war
B. to describe the event that finally made the
United States decide to join World Warl and
fight against the Germans
C. to illustrate the unfaimess of war when civilians
are starved from blockades or killed during sea
attacks
D. to demonstrate how the Sussex pledge
protected passengers of ships when the U-
boats went on campaigns

10 points per question and brainlist 1. name four of the ruling dynasties of china. describe at least three contributions to society from each dynasty. 2. why did the qin ruler zheng burn chinese literature and philosophy books? how did the han dynasty establish a strong and effective government? why did people rebel against the sui rule? 3. what new technologies were invented during the tang dynasty and fully developed in the song dynasty that would eventually have a great impact on the world? explain why this technology had such an impact. 4. who were the invaders that seized control and took over the song dynasty? 5. how was china's history affected by its policies of isolation from the outside world during the ming dynasty?