Which principle of design indicates a type of movement in an artwork that can be achieved by repeating lines, shapes, or colors?
A. Rhythm
B. Unity
C. Contrast
D. Emphasis

Rhythm.

Explanation:

The added repetition of the appearance of a certain image, shape, or color, creates what is known as visual rhythm, making a piece more appealing to the human eye.

Hope this helps.

pitch- the definition of pitch is as follows:

"the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone."

the german artist, architect, and designer, peter behrens