Characterization of Leah in a Dinner Party Scene

In a contemporary novel, the character Leah is introduced during a pivotal dinner party scene. As the evening progresses, Leah’s interactions reveal much about her personality. She often dominates the conversation, making grandiose claims about her career while subtly belittling others’ opinions. At one point, she dismissively laughs at a friend's artistic pursuits and instead pivots to discuss her recent promotions, showcasing her tendency to overshadow others. The host, noticing the tension, tries to mediate but her laughter only intensifies the unease in the room. This dynamic leaves the guests feeling uneasy and alienated, particularly her longtime friend who seems increasingly hurt by Leah’s remarks.

Considering Leah's behavior in this context, which characterization best captures her role in the story?