7. What was the impact of the 1922 Fordney-McCumber Tariff on Europe? A. Helped European farmers compete with U. S. farmers

B. Lead to the disarmament of European naval forces

C. Made it more difficult for Europe to pay off war debts

D. Made the Open Door Policy in China possible

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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