01 What does variety of shapes increase in a picture?
Answer and explanation
Correct answer: C. Visual interest
Explanation: Variety means using different kinds of shapes instead of repeating exactly the same form everywhere. Differences in size, outline, direction, or character can make the viewer notice more parts of a picture. They can also prevent the composition from looking dull or mechanical. A thoughtful mixture of circles, rectangles, organic forms, and other shapes can give the artwork rhythm and visual interest.
Option C is correct because varied shapes make a picture more engaging to look at. Paper thickness and frame price are physical or commercial matters, not results of shape variety. A drawing has no literal sound, so the last option is unrelated. Variety should still be controlled: too much random difference may cause confusion, but suitable variation makes the composition lively and interesting.