Well, you could use a concrete model to make 6 groups of 17 objects. Then, you could count them.
The Technical Director is responsible for the building and operation of stage machinery and scenery; scheduling lighting and industrial crews; moving scenery in and out of the theatre; and establishing policies and directives for scene shifting
Hope this helps!
Rhythm: A continual flow or sense of movement created by a pattern or repetition of visual units. ... Harmony: The quality of how the visual elements are working together in a composition. It is achieved when all elements have unity and cohesion, giving a sense of completion to an artwork.Harmony. Harmony in art and design is the visually satisfying effect of combining similar, related elements. For instance: adjacent colors on the color wheel, similar shapes etc. Harmony.
So there for C. Similarities would be ur answer
hope this helps
i would suggest whatever you would like as a good app
