The main factor that led to the stock market crash of 1929 was the inflated and baseless valuation of companies in the stock market, based on unwarranted optimism.
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Im taking the test now and i think that the first one is D
Answer: Combatants: Soviet Union; United States
Explanation:Historians have identified several causes that led to the outbreak of the Cold War, including: tensions between the two nations at the end of World War II, the ideological conflict between both the United States and the Soviet Union, the emergence of nuclear weapons, and the fear of communism in the United States.