How are wood grains shown with line?

Correct answer: With irregular long lines

Answer: A, with irregular long lines. Wood grain can be suggested by long lines that follow the length and natural growth pattern of the wood. These lines may curve, widen, narrow, separate, or join slightly, so they should not all be perfectly straight and identical. Option A is correct because irregular long marks resemble the flowing grain visible on many wooden surfaces. Option B is incorrect because small squares do not normally describe the lengthwise grain pattern. Option C is incorrect because the question asks how to show grain with line, and without marks the grain cannot be communicated through line. Option D is incorrect because a frame surrounds an image and does not represent the grain of the wood. The artist should observe the direction of the surface, lightly place the main long grain lines, and then add a few variations. Avoid drawing too many dark lines, since that may make the wood look scratched rather than naturally grained. Memory cue: wood grain flows along the wood in long, varied lines.