How can facial expression be shown with lines?

By changing the direction and curvature of the lines of the eyebrows, eyes, and mouth

Lines are not only marks for outlining an object; their direction, curve, length, and placement can communicate feelings. Facial features are especially useful for this purpose. A curved mouth turned upward may suggest happiness, while a downward curve may suggest sadness. Eyebrows and eyes also change the emotional meaning of a face. Thus, the expression is created through the visual arrangement of lines, not through the paper, frame, or position of the picture.

To solve this question, look for the option that directly changes the facial features. Option A mentions the eyebrows, eyes, and mouth, and also refers to their direction and curvature. These are the parts and qualities that control the appearance of an emotion. Changing paper thickness, frame size, or the orientation of the picture does not itself draw a different expression. Therefore, A is the correct choice.

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