Which word signifies balanced proportions?

The correct choice signifies balanced proportions, highlighting the concept of harmony and evenness. Symmetry refers to a property where the arrangement of parts is balanced and proportionate on either side of a central point or axis. In various disciplines, such as art, architecture, and nature, symmetry is valued for its aesthetic appeal and structural integrity, showcasing how elements can exist in equilibrium. This balance creates a sense of order, making symmetry a fundamental principle in design and analysis.

The other options represent concepts that are contrary to balance—chaos implies disorder and randomness, disproportion indicates an imbalance in size or relationship, and instability suggests uncertainty or lack of steadiness. None of these terms encapsulate the idea of balanced proportions as effectively as symmetry does.