Which tool is helpful to show wood texture in drawing?

Long, irregular, roughly parallel lines

The governing concept is representing surface texture through repeated marks. Wood usually has visible grain: elongated streaks and irregular bands that follow a broadly consistent direction. Long, irregular, roughly parallel lines can imitate those grain marks and make a flat drawing surface appear woody. Therefore, option A is correct. The lines should not all be perfectly mechanical; slight variation in length, spacing, curve, and darkness makes the texture more natural. Uniform circular dots may suggest spots, pores, or another surface, but they do not clearly communicate wood grain. Blank space provides no drawn texture, and folding paper changes the object physically rather than depicting its surface in a drawing. The selected option is a mark-making method, not a separate physical tool.

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