What describes an outline in a general sense?

An outline serves as a general description or plan that highlights the essential features of a topic or piece of work. It organizes ideas in a structured manner, providing a clear framework without going into exhaustive detail. This makes it easier to understand the main points and how they connect, which is particularly useful in writing or planning any type of project.

In contrast, a detailed explanation would encompass all intricate aspects and nuances, which an outline does not aim to do. Similarly, a narrative focusing on character development or a creative storytelling format would involve more complexity and depth, which are beyond the scope of what an outline provides. Therefore, the correct answer effectively encapsulates the purpose and function of an outline in a straightforward and accessible way.