The author makes the claim that rewards entice teens more than they do adults.
Which of the following is the most relevant piece of support for this claim?
*
A Volunteers had learned the value of each color. But they weren't aware that
they had. (paragraph 5)
B) The recruits were told to answer as quickly as possible. And for this phase of
the experiment, no additional money would be earned. (paragraph 7)
Adults, though, quickly stopped paying attention to the colored circles. Their
response times sped up. (paragraph 9)
D) Some behaviors, such as texting or using social media, trigger the brain's
reward system. (paragraph 13)