What is a common cause of wrong proportion in line drawing?

Correct answer: Drawing lines without comparing angles and lengths

Direct answer: A, drawing lines without comparing angles and lengths. Proportion means the size relationship between parts and the whole. In a line drawing, the artist should compare overall height and width, the size of one part with another, and the angles and directions of important edges. If a person draws each line separately without checking these relationships, one part may become too long, too short, too wide, too narrow, or wrongly tilted. B is not a cause of incorrect proportion; light construction lines usually help the artist test and adjust the drawing before making final marks. C is a helpful practice because careful observation reveals relationships. D is also helpful because suitable space allows the whole subject to be planned. Therefore, careless comparison is the common problem. Memory cue: measure relationships before details; proportion is about parts compared with parts and the whole.