Answer:
d. has a hostile work environment.
Step-by-step explanation:
Based on this scenario, it seems that Carz Parts has a hostile work environment. This is a work environment that is created by a boss or coworker whose actions, communication or behavior make doing your job impossible by altered the terms, conditions, and/or reasonable expectations of a comfortable work environment. Which in this scenario, the sexually explicit posters were put up and/or allowed by the boss, and since the posters make Marlene very uncomfortable which prevents her from doing her job correctly the boss has therefore created a hostile work environment.