Answer:
e. Social Identity Theory
Step-by-step explanation:
Identity is the sense of who and what we are and also where do we belong. According to this social identity theory, people is most likely to
over an outgroup as the former is a part of their self-identity. It means that people tend to overestimate the features of their own group to which they belong whereas they try to minimize the characteristics of the other groups.
In the context, Heidi is finding it difficult to understand about the new email by the company about the Black Lives Matter movement. She is a woman from a small town and do not have much exposure to the diversity efforts. She dismisses the email as unfounded as it was contrary to her past experiences. This shows an example of social identity theory.