It was primarily the "b. formation of the Vietcong in Vietnam" that led the Truman administration to expand the containment doctrine to include Asia, since this was seen as a threat to democratic principles in the west as well.
The answer to number 9 is D.
The answer to number 6 is C.
The Africans and the Americans were harmed because of the stock market crash because it caused the Great depression in the economy.
<h3>Causes of the stock market crash:</h3>
There were numerous and varied causes of the stock market crash. Some of them were low wages, polling of the debt, suffering agricultural sector, and many more.
The Great Depression was not only due to the decline in the stock market but was also caused by many of the reasons. It certainly has caused the society to hasten the global economic collapse, of which it was a symptom.
Nearly half of America's banks had failed by 1933, and unemployment had risen to 15 million people, or 30% of the population.
Learn more about the ham that was caused by the stock market crash here:
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