Which statements about the Cold War are true? Choose all answers that are correct.
A The United States sent aid to countries that were at risk of falling to communism
B Berlin, the former German capital, was divided among France, Great Britain, the United States, and the Soviet Union.
C The United States and the Soviet Union were suspicious and mistrustful of each other
D East Germany became an American ally during the Cold War, while West Germany aligned itself with the Soviet Union.

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.