Final answer:
Option (d) best exemplifies a communicator's professional context influencing communication as the public relations manager is the only employee authorized to talk to the press.
Step-by-step explanation:
The option that best exemplifies a communicator's professional context influencing communication is: (d) As the public relations manager, Trina is the only employee at Gila Construction authorized to talk to the press.
The professional context in this scenario influences communication because Trina's role as a public relations manager dictates her responsibility for handling communication with the press on behalf of the company. This means that she must carefully consider the company's image, messaging, and media relations when communicating with the press.
Additionally, Trina's authorization to talk to the press highlights the importance of professional boundaries and the impact of professional roles on communication within organizations.