How should lines be placed to control eye movement in a picture?

So they guide sight toward important parts

The governing concept is the use of lines as visual pathways. In a well-planned picture, the direction, length, thickness, and placement of lines can lead the viewer’s eye from one area to another and finally toward the important subject or detail. Thus, option A is correct: lines should be arranged so that they guide sight toward significant parts of the composition. Option B is unsuitable because lines pointing outward without purpose may lead the eye away from the intended focus. Options C and D remove lines from the visible composition and therefore cannot effectively control eye movement within the picture. Good placement does not mean that every line must point directly at the subject; rather, the overall arrangement should create a clear and purposeful visual route.

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