Final answer:
The individual demonstrating the fundamental attribution error is Phoebe, who assumes that Rachel must be very emotional based on her behavior.
Thus, the correct option c.
Step-by-step explanation:
The individual who is demonstrating the fundamental attribution error is option c) Phoebe.
Phoebe sees Rachel crying in the bathroom and assumes that Rachel must be very emotional. This is an example of the fundamental attribution error because Phoebe is attributing Rachel's behavior solely to her disposition or internal factors, without considering any situational factors that may have contributed to Rachel's emotional state.
To avoid committing the fundamental attribution error, it is important to consider both dispositional and situational factors when explaining someone's behavior.
Therefore, the correct option c) phoebe sees rachel crying in the bathroom and assumes that rachel must be very emotional