B.
PART B: Which detail from the text best supports the answer to Part A?
A.
C.
tal
D.
th problems.
"A new study, published in February in the Journal of Youth and
Adolescence, takes a more nuanced look, attempting to determine just
how much each hour less per night really costs" (Paragraph 1)
"Although teenagers need about nine hours of sleep a night on averag
according to the National Institutes of Health, only 3 percent of studen
reported getting that amount" (Paragraph 2)
"These correlational findings do not prove that lack of sleep is causing
these problems. Certainly the reverse can be true: depression and an
can cause insomnia." (Paragraph 3)
"But the majority of the research evidence supports the causal direct
being lack of sleep leading to problems rather than the other way ard
(Paragraph 3)