Which of the following is a primary role of a contractor?

The primary role of a contractor is to oversee and coordinate the construction work. This responsibility involves managing all aspects of a construction project, including planning, labor management, scheduling, and ensuring that the work complies with local codes and regulations. Contractors serve as the point of communication between the client and the construction team, facilitating a smooth workflow by coordinating between various trades and ensuring that each component of the project is executed on time and within budget. This management role is crucial for overall project success and client satisfaction.

While financing a project can be part of a contractor’s responsibilities if they are acting as a more integrated party, it's not their primary role unless specifically stipulated. Completing all work personally would not be feasible on larger projects, where a contractor must delegate tasks to skilled labor or subcontractors. Lastly, controlling all subcontractors without oversight is not practical or advisable; effective oversight involves communication, collaboration, and making informed decisions based on the project’s needs. Thus, the coordination and oversight function encapsulates the essential duties of a contractor in the context of construction projects.