How can distance and closeness be suggested through lines in a picture?

Through thickness, clarity, and converging direction of lines

The governing concept is linear perspective and the use of line quality to suggest depth. In a scene, nearer edges are often drawn more strongly, clearly, or with greater apparent thickness, while distant edges may be lighter, smaller, and less distinct. Lines that run into the distance can converge toward a vanishing area, helping the viewer read space and depth. Therefore option A is correct because thickness, clarity, scale, and converging direction work together to suggest closeness and distance. The smell of paper and removal of a title have no visual role in spatial drawing. “Closing colours” is not a meaningful method for showing perspective. These line choices are conventions rather than absolute rules, but they provide a convincing visual cue when used consistently with the scene and viewpoint.

This is a Class 9 Art Education question. Chapter: Elements of Art. Topic: Line.