Answer:
I suggest listing the digital sources you're asking about so people know what exactly you're referring to and can help you easier with this.
Answer: it proves young people are best at retaining information that comes from advertisements.
Explanation:
The paragraph help contribute to the overall idea that advertisements play a significant role in American Life by proving that young people are best at retaining information that comes from advertisements.
According to Twitchell, while studying products, he soon realized thatvthe suddenly students were not interested in the advertisement per say but can flawlessly recite the contents of the advertisement. This shows that the students were more concerned with retaining of informations.
Johnny Cash was one of few musicians who has ever been inducted into both the rock and country halls of fame.