Concept:Arranging sentence parts in a logical sequence ensures a smooth flow of ideas in a paragraph.Explanation:Sentence 1 states that a compass is an important navigation tool.Part S comes next because it introduces the typical users: hikers and sailors.Part R follows naturally, explaining that the compass works without GPS or electricity.Part P then describes its core feature—always pointing to magnetic north.Part Q ends the sequence by highlighting its usefulness even in cloudy weather.This order (S→R→P→Q) creates a coherent paragraph that builds from users to features to reliability.Answer:Option B: SRPQ