The answer would be C.) Tension
I know someone else answered but I wasn’t sure if you needed more depth to understand. Different elements and factors make up art, and color and line are purposeful choices to create effects like visual harmony or specific composition. If they disagree as in this situation, tension would best define the art. You can see an example of this below:
Werner Drewes, Spatial Tension, 1982
Hope this helps!! :)