What is primary emotion?
a) an emotion that boosts your self-esteem
b) an emotion that causes regression
c) an emotion that is expressed by people in al cultures
d) an emotion that is expressed which is specific to one's culture

Hey there!

A primary emotion is an emotion that humans first feel in response to any situation. These include emotions such as fear, anger, happiness, and sadness, which are natural emotions that anyone can experience. Someone must feel at least one primary emotion before they can experience and secondary emotion, such as when sadness turns to anger, which causes further emotions that are more complex. 

Because these emotions are so basic and closely related to the general human experience, I would say that your answer is C, since everyone experiences primary emotions, no matter where they are in the world. 

Hope this helped you out! :-)