Thepopularizationofradiosexpanded thecommunicationsandsports industries, as stated inoption Aand further explained below.The popularization of radiosBefore the television, the computer, or the smartphone,radioswere the mostimportantmeans ofcommunication. As they become more and morepopular, families would gather around theirradiosat home to enjoy theprogramstogether.Thatpopularizationimpacted thecommunicationsandsports industries. Different types ofprogramswere created in order toinformandentertainlisteners.Sports programswould also keep people updated concerning their favorite teams and games.With the information above in mind, we can chooseoption Aas thecorrectanswer.The complete question with the missing answer choices is the following:Thepopularizationof ________ expanded thecommunicationsandsports industries.radiostalkiesthe Model TairplanesLearn more about theradiohere:brainly.com/question/963327#SPJ1...

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