Which of the following best describes a leader line?

A leader line is a type of line used in technical drawings and architectural plans to connect a note, label, or symbol to a specific feature or area of the drawing. It typically includes an arrow that points to the item being referenced. The correct choice captures the essence of how leader lines function in the context of conveying important information about dimensions or reference points in a drawing.

Leader lines are crucial in effectively communicating details without cluttering the drawing, ensuring clarity. They guide the viewer's attention directly to the relevant parts of the illustration, making it easier to understand complex designs. Understanding this enables one to appreciate the importance of lines in architectural and engineering representations, establishing a clear connection between the annotations and the features they describe.