How is line used to make patterns?

Repeating lines creates a decorative order

The governing concept is repetition, one of the basic methods of organising lines in a design. A pattern results when a visual unit is repeated in a planned way, often with regular spacing, direction, or alternation. Straight, curved, diagonal, zigzag, and wavy lines can all be repeated to create borders, rhythms, motifs, or decorative surfaces. Option A is correct because repeated lines establish an organised sequence that the eye can recognise as a pattern. Randomly erasing lines creates gaps rather than a designed unit. Colour mixing alone may produce colour relationships, but it does not demonstrate a line pattern, and ending lines at one point does not create repetition or a complete decorative arrangement. Pattern-making therefore depends on ordered recurrence.

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