Answer:
The correct answer is A) serotonin
Explanation:
Serotonin is a neurotransmitter that is responsible for regulating sleep, aggression, appetite, etc. Serotonin plays an important role in mood swings, fear, anxiety. Decrease production in serotonin can cause depression, loss of appetite, low energy, negative thoughts, irritation, etc.
Therefore as jack has lost his appetite and is unable to sleep and experience mood swings therefore this shows that the amount of serotonin hormone in jack has diminished. Therefore the correct answer is A.
the body temp can fall continuously when you're exposed to extreme cold weather or wearing wet clothing for a long time. This soon can lead into some potential diseases and disorders like infection, insomnia, stress and sepsis.
Hope it helps!
<span>B. A coroner or medical examiner
investigation is required</span>
