<span>b. he supported the philosophy of 'rugged individualism' </span>
"<span>All of the major powers considered war to be part of a valid foreign policy" is the best option, but it should be noted that militarism was a consequence of nationalism. </span>
The optimism disappeared almost overnight when the Wall Street Crash, on October 29, 1929 (Black Tuesday), triggered the Great Depression starting the downward economic spiral that led to bankruptcies, mass unemployment, homelessness and despair.
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