Answer:
c. often those who are labeled as deviant develop a deviant identity and embark on a career of deviance
Explanation:
In sociology, labeling theory is a theory usually used in criminology and it estates our self-identity and our behaviors are determined by what other people expect from us.
This theory is widely used in criminology because it states that when we label someone as "a person who deviants from the norm, not following the laws" this statement can actually leads to the person going against the law and committing crimes. In other words, we label someone as a criminal and this makes him/her act more like a criminal.
Therefore, labeling theory essentially argues that c. often those who are labeled as deviant develop a deviant identity and embark on a career of deviance.