Which managerial activity focuses on building relationships with acquaintances inside and outside the organization?

Networking is the correct answer because it specifically pertains to the process of establishing and nurturing professional relationships both within an organization and beyond its boundaries. This activity enhances communication, collaboration, and resource sharing, which are essential for personal and organizational success. By engaging in networking, managers can create valuable connections, access diverse perspectives, and facilitate opportunities for cooperation.

The other options describe different managerial functions. Decisional roles involve making choices that affect the organization, such as allocating resources or resolving conflicts. The spokesperson role is focused on representing the organization to external constituents, while the entrepreneur role includes initiating innovative projects and driving change within the organization. While each of these roles has its significance, networking distinctly emphasizes relationship-building, making it the most pertinent choice for the question asked.