Which type of doctrine guides organizations and the employment of forces within distinct objectives but is broad in its functional areas?

The operational doctrine is the correct choice because it provides a framework for the organization and use of military forces towards achieving specified objectives. This type of doctrine focuses on the planning and execution of campaigns and operations, allowing for a broader interpretation of methods and approaches while ensuring alignment with strategic goals. It incorporates various functional areas such as logistics, intelligence, and coordination between different units or branches of the military, promoting a cohesive effect in achieving operational tasks.

The emphasis on distinct objectives while maintaining flexibility in functional areas makes operational doctrine essential for effective military planning and execution, as it bridges the gap between strategic goals and tactical actions.