Answer: it proves young people are best at retaining information that comes from advertisements.
Step-by-step 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.