Final answer:
Zahra is likely experiencing reaction formation, an ego defense mechanism that leads her to adopt behavior opposite to her true feelings, in her case becoming loud and obnoxious like her boss whom she dislikes.
Step-by-step explanation:
Zahra may be engaging in the ego defense mechanism known as reaction formation. This mechanism involves an individual expressing feelings, thoughts, and behaviors that are the direct opposite of their true feelings or inclinations. In Zahra's case, even though she dislikes her boss for being loud and obnoxious, she begins to display those same traits. This could be a subconscious effort to cope with the discomfort or anxiety she feels regarding her boss's behavior by overcompensating and adopting the very traits she disapproves of.