PART A: Which statement best expresses the central idea of the text?
A. Researchers recommend that teenagers get between five and nine hours of sleep a night to protect them from deteriorating mental health.
B. Research is showing that lack of sleep probably increases the likelihood of mental health problems in teenagers.
C. While getting too little sleep can be damaging to teenagers, it is also not beneficial to get over nine hours of sleep.
D. Mental health problems negatively affect teens’ sleep patterns, more than lack of sleep contributes to mental health problems

Secret in slovakia how does the author's use of foreshadowing in the opening paragraphs affect the passage? a. it creates excitement by revealing the narrator's hopes of receiving part of her great-aunt's estate. b. it creates dread through its vivid descriptions of the house; readers are aware that something terrible has happened within those walls. c. it creates mystery by suggesting that the narrator's view of the house will somehow change as a result of her experiences inside. d. it creates a sense of joy and anticipation by hinting that the narrator will be reconnected with her great-aunt.

What happens to lovers when there are decreased levels of serotonin in the brain?

What piece of evidence does not provide good support for this claim?