(A) ** worldwide depression
(B) growth in economies
(C) forming of the European Union
(D) alliances among nations
EXPLANATIONS BELOW
Concept note-1: -The Great Depression (1929–1939) was an economic shock that impacted most countries across the world. It was a period of economic depression that became evident after a major fall in stock prices in the United States.
Concept note-2: -October 29, 1929 The stock market crash of October 1929 led directly to the Great Depression in Europe. When stocks plummeted on the New York Stock Exchange, the world noticed immediately.
Concept note-3: -(1) The stock market crash of 1929 shattered confidence in the American economy, resulting in sharp reductions in spending and investment. (2) Banking panics in the early 1930s caused many banks to fail, decreasing the pool of money available for loans.
Concept note-4: -The stock market crash crippled the American economy because not only had individual investors put their money into stocks, so did businesses. When the stock market crashed, businesses lost their money. Consumers also lost their money because many banks had invested their money without their permission or knowledge.
Concept note-5: -The crash of the US stock market undermined the US economy and affected the rest of the world because the US was the largest lending nation to the rest of the world and the largest import market as well.