Which term refers to the arrangement of ideas in writing?

The term that best refers to the arrangement of ideas in writing is organization. In writing, organization refers to the way in which ideas and information are structured to enhance clarity, coherence, and overall effectiveness of the text. A well-organized piece allows readers to follow the writer's line of thought and retrieve information effectively, contributing to the overall impact of the writing.

Transitions, while important for connecting ideas and ensuring smooth movement from one point to another, do not encompass the overall arrangement of those ideas. Purpose refers to the reason behind writing a piece, which influences content but is separate from how that content is structured. Cohesion pertains to how elements in the text stick together to create a unified whole, but it also does not directly refer to the overall arrangement. Hence, organization is the most appropriate term for the arrangement of ideas in writing.