The professor is demonstrating which of the following?

Self-serving bias refers to the tendency to attribute positive outcomes to one’s own actions while blaming negative outcomes on external factors. This concept focuses on how individuals perceive their successes and failures rather than how they perceive others' behaviors, making it less relevant to the professor's demonstration of attribution errors.

Confirmation bias is the tendency to search for, interpret, and remember information that confirms one’s preexisting beliefs. While this cognitive bias influences how individuals process information, it does not directly relate to the attribution of others’ behaviors, which is the focus of the fundamental attribution error being demonstrated.

Out-group homogeneity bias is the perception that members of a different group are more similar to each other than they are to members of one’s own group. This bias pertains to social identity and group dynamics rather than the misattribution of behaviors, distinguishing it from the fundamental attribution error being highlighted by the professor.

The representativeness heuristic involves making judgments about the probability of an event based on how similar it is to a prototype. While this cognitive shortcut plays a role in decision-making, it does not engage the misinterpretation of behavior that characterizes the fundamental attribution error.