What best describes the principle of subordinate in an outline?

The principle of subordinate in an outline refers to the hierarchical organization of ideas, where main topics or headings are divided into subtopics or subpoints that provide more detailed information. This structure helps to clarify relationships between concepts, ensuring that each level of the outline supports and elaborates on the main ideas. Subordinate points are typically indented beneath their corresponding main points, visually indicating their lesser importance and their role in elaborating on the primary topic.