Explain how technology took American culture in new and different directions. What role did motion pictures and radio play in shaping cultural attitudes in the United States? How does the entertainment industry shape cultural attitudes today?

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Explanation:

People became fascinated with the lives of celebrities performing in the early times. Charlie Chaplin being amongst the first few notable personality to have gained via this medium. Radio helped make sports more popular, as more and more people would prefer this new form of technology. It reached far and wide and made celebrities out of the athletes too. The attitudes depicted in the film/movies etc heavily influences peoples' perceptions and likes/dislikes.

1920's

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explanation:

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation: