The changes that came in America with the invention of the radio was It provided Americans with a way to hear the news as it happened. Thus the 4th option is correct.
<h3>What is radio?</h3>
Radio is mass communication at the distance places when the sound waves are converted into electromagnetic waves and transmitted to the receiver which again gets converted in to the sound waves.
With the advent of the radio, many changes came into America as it encouraged the widespread of the news and the increase in the popular music.
Due widespread reach of the radio in America it was able to the bridge the gap between the cultures. Thus the 4th option is correct.
Learn more about America here:
brainly.com/question/19339803
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