Answer: d. stigmatization
Explanation:
Stigmatization is an act of disproving, disrespect, of someone or some activity based on the perceivable social characteristics that serves to differentiate and distinguish such persons and activities from other members of the society and the activities which are in favor of the society.
The prisoners are recognized by their dresses which is of green and white striped. The dress of the prisoners represents the fact that the a social stigma of crime is associated with these prisoners.