Answer:
Neurotransmitters
Explanation:
Let us fill in the gap in the question first;
'' NEUROTRANSMITTERS are chemical substances that are stored in very tiny sacs within the neuron's terminal buttons and involved in transmitting information across a synaptic gap to the next neuron''.
PS: The word in capital letter is the missing word to fill in the gap.
Neurotransmitters helps in transmitting message or information and they are also used to regulate mood, Concentration, rate of digestion and so on. It is released by a nerve cells and it travels down through a neighboring cell. There are different types of Neurotransmitters, few and themiat common are; dopamine, Norepinephrine, acetylcholine, endorphin, serotonin, and so on.
It is called a positive psychology as it is responsible for having or making an individual strengthen his or herself in a way of his or her well being or a representative as an individual. It is a way of having positive characteristic and attitudes which is seen above.
The correct answer is D., because if its little its easily repayed but if its to large it becomes harder to repay, I hope this helps you have an amazing day!!
~<span>razerthebrainieace</span>