The answer to this question is : D.
I think anxiety disorders and adult disorders are different by the way they effect people.the daily impact on daily living is more than i know.i don't know what treatments are suggested for the people with this disorder.i cant answer your last question
<span>Body Temperature Regulation
</span><span>Disease Protection and Healing
</span>Carbon dioxide and oxygen transportation
<span>Nutrient and Waste Product Transport
</span><span>Hormone Delivery
</span>

Mortality rate, or death rate, is a measure of the number of deaths in a particular population, scaled to the size of that population, per unit of time.