Camila Is Nervous About an Upcoming Exam and Is Consuming

Camila is nervous about an upcoming exam and is consuming large quantities of pasta.She is surprised by how much of this starchy,carbohydrate-laden food she is eating.What can you tell her that will explain her eating behavior?

A) Carbohydrates increase levels of ghrelin,which can help you sleep.
B) Carbohydrates help increase levels of serotonin,which can have calming effects.
C) Carbohydrates help increase levels of orexin,which can have calming effects.
D) Carbohydrates help increase levels of norepinephrine,which can have calming effects.