Sonya's change in attitude illustrates cognitive dissonance theory .
Option A
Step-by-step explanation:
This theory describes the inconsistency of a person’s behavior, beliefs or attitudes. The internal struggles caused by these conflicted feelings lead to change in any of these traits which eventually lead to ease of discomfort and restoration of balance.
Some of the factors that affect cognitive dissonance include changes that lead to making new relationships, acquiring new information and reducing the importance of long-held beliefs, behavior and attitudes. Sonya’s changed her attitude and behaviors due to connecting on a personal level with the sorority girls.