Which developments of the 1920s contributed to an improvement in the American standard of living? Select four options.greater amount of leisure timebetter means of communicationincreased availability of automobilesmore effort to save money for the futuremore types of entertainment from new technology

In the 1920s, people benefited from more leisure time and improved communication, including widespread use of radios and telephones. Automobiles became more available, making travel easier, and new technologies created more entertainment options, such as radio programs and movies. These changes improved daily life; making more effort to save money for the future was not itself a development that directly raised the standard of living.

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