A self-fulfilling prophecy is an example of the halo effect. This is because the initial expectations or beliefs about a person can influence how they are treated, which in turn leads the person to act in a way that confirms those expectations.
However, the correct answer in the context of self-fulfilling prophecy specifically might not perfectly align with the provided options, as it represents a broader psychological phenomenon rather than a specific "effect" classified in the same way. If you have to choose an answer from the list provided based on common understanding, none directly describe the concept of a self-fulfilling prophecy.
If you were looking for associations, the answer would be B. The halo effect, as it relates to how perceptions can influence behavior in ways that confirm the initial beliefs.