<span>The right answer is C. It emphasizes human growth and fulfillment. Positive
psychology is a branch of psychology that scientifically studies the
psychological well-being of the human being, the body's reaction to
positive and negative emotions, and the effect on the body of
experiencing prolonged unpleasant psychological situations, such as stress. <span>Various
investigations have shown that experiencing more positive emotions,
such as joy or gratitude, prevents cardiovascular problems.
I hope my answer can help you.
</span></span>
The letter A is the one that represents a neurotransmitter acting via direct effects.
<h3>What is a neurotransmitter?</h3>
These are chemical messenger that helps carries signals across the neurons and target cells throughout the body.
Hence, the letter A represents a neurotransmitter acting via direct effects because its involves direct connection between the neurons.
Therefore, the Option A is correct.
Read more about neurotransmitter
<em>brainly.com/question/26387085</em>
i believe it is B I am also stuck on this question but B sounds the best.
It was fertile because there are water sources on both sides of the land, so many things could bring the waters to the land making it fertile.