add the sentence that best introduces the paragraph. they heard stories of young heroes and their…

add the sentence that best introduces the paragraph. they heard stories of young heroes and their adventures. kids had to imagine the stories without any pictures. the interesting voices of the actors and the sound effects helped the tales come alive. the shows were also exciting because the stories were told in short parts. one part might be only fifteen minutes long. kids had to listen over many days to hear how the story ended. to get their news, many american families listened to the radio. in the past, people heard ads on the radio for things like cereal and soap. before television, kids listened to radio shows after school or on weekends.
Answer
Brief Explanations:
The paragraph focuses on kids listening to radio - shows, imagining stories, and waiting for the endings. The first option is about news, the second about ads, and the third option about kids listening to radio shows which is the best fit as it sets the context for what follows in the paragraph.
Answer:
Before television, kids listened to radio shows after school or on weekends.