Final answer:
The top management or board of directors is responsible for forming the mission of an organization, providing strategic direction and defining the core purpose encapsulated in the mission statement.
Step-by-step explanation:
The final responsibility for forming an organization's mission lies with the organization's top management or board of directors. These leaders are tasked with establishing the strategic direction and defining the core purpose of the organization, which is often encapsulated in the mission statement. This mission statement serves as a guide for all organizational activities and decisions, helping align various efforts towards a common goal. The mission provides a sense of direction and outlines the organization's intentions in a way that resonates with both internal stakeholders and the broader community that it serves.