The correct answer is; Dopamine.
Further Explanation:
Dopamine receptors are responsible for many functions in the human body such as smiles and gestures. This helps people to enjoy the rewards of the consummatory process.
Dopamine is responsible for several things such as;
Dopamine in psychology is used very several researchers and scientists since this release in the brain controls so many emotions. When someone has an issue with dopamine levels they can become depressed and need medications.
Learn more about dopamine at https://brainly.com/question/2585817
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