Final answer:
When a manager announces a company's new product line during a press conference, they are engaging in the spokesperson role, aimed at informing external parties about the company.
Step-by-step explanation:
During a press conference, when a manager at Ruskin Welt Inc. makes a major announcement about the company's new product line, they are taking up the spokesperson role.
This role involves providing information to outsiders about the company's plans, policies, actions, and results. It is a communicative role that serves as a bridge between the internal operations of the company and the external stakeholders.