According to the PMBOK® Guide, specifically the section on Organizational Structures, a Strong Matrix organization maintains many of the characteristics of the projectized organization and can have full-time project managers with considerable authority.

Project Manager Authority: In a strong matrix, the balance of power shifts toward the project manager. While they still operate within a functional framework, their authority is characterized as moderate to high.

Resource Availability: The project manager has a moderate to high level of control over resource availability. They negotiate with functional managers but generally have the " upper hand " or a formal mandate to utilize staff for project objectives.

Budget Control: Unlike functional or weak matrix structures, in a strong matrix, the Project Manager typically manages or has significant control over the project budget.

Project Management Administrative Staff: In this structure, the project manager and the project management administrative staff are usually assigned full-time.

Comparison with Other Options:

Limited (A): This degree of authority is found in a Weak Matrix organization, where the project manager acts more as a coordinator or expeditor.

Low to moderate (B): This characterizes a Balanced Matrix organization, where the power is shared relatively equally between the functional manager and the project manager.

Moderate to high (C): This is the definitive classification for a Strong Matrix.

High to almost total (D): This degree of authority is reserved for Project-Oriented (Projectized) organizations, where the entire company is organized around projects and functional departments may not exist or only provide support.