The United States often achieves its foreign policy goals by: A. refusing to participate in any international organizations.

B. placing strict limits on the power of the executive branch.

C. using its economic power to put pressure on countries.

D. relying on isolationism to get into conflicts with other nations.

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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.