What changes when pressure on line changes?

Correct answer: Darkness and thickness of the line

Answer: A, the darkness and thickness of the line. Drawing pressure affects the amount of material deposited by a pencil, charcoal, crayon, or similar tool. More pressure usually makes the mark darker and often broader or thicker; lighter pressure usually makes it paler and thinner. The exact result can also depend on the tool, paper, and drawing method, but pressure directly changes line quality. Option A is correct because darkness and thickness are common visible effects of pressure variation. Option B is incorrect because the paper texture is a property of the paper; pressure may reveal or interact with it, but it does not change the paper itself. Option C is incorrect because the frame colour is separate from the act of drawing the line. Option D is incorrect because pressure does not decide what the picture is about. An artist can use changing pressure for emphasis, shading, foreground details, or delicate marks. Memory cue: heavy hand usually gives a dark, strong line; light hand gives a light, delicate line. This is about the mark, not the paper or frame.