Final Answer:
When coworkers casually discuss work-related topics at lunch, it is called A. Informal communication.
Step-by-step explanation:
Informal communication refers to the spontaneous and unofficial exchange of information that occurs in non-formal settings, such as during lunch breaks.
In these informal interactions, coworkers can freely share thoughts, ideas, and updates on work-related matters without the constraints of formal protocols or official channels.
This type of communication is essential for building camaraderie, fostering team spirit, and promoting a positive work culture.
It often occurs in relaxed settings like lunch breaks, where colleagues can engage in open discussions, share insights, and strengthen professional relationships.
In summary, the correct answer is A. When coworkers casually discuss work-related topics at lunch, it is called informal communication.