The section "Zombie-making biology" uses science to refute the idea that teens are just lazy: D by suggesting that teens have a biological reason for going to bed later so need to sleep in later.
The author's main point was that children being overstressed and sleeping during the day can be blamed on their biology and not on pressure or laziness.
The author quoted some researchers who showed that the sleep cycle of teenagers shifts each year.
So, they develop the need to sleep later and longer.
Learn more about the biology of teens here:
https://brainly.com/question/1956818