What is the primary purpose of an armature in sculpting?

The primary purpose of an armature in sculpting is to provide stability and support. An armature is a framework or structure that underpins a sculpture, especially in the creation of larger works or those made from more pliable materials like clay or wax. By offering strength and a reliable base, an armature helps artists achieve the desired shape and maintain the integrity of the sculpture during the building process and throughout the drying or hardening phase. This is crucial for preventing structural failure, allowing the artist to focus on the artistic elements of their work without worrying about collapse or distortion.

In contrast, other options do not accurately reflect the armature's role. While decorative features are important in the overall aesthetic of a sculpture, they do not encompass the fundamental function of an armature. Similarly, its role is not to help in coloring or creating textures, which are achieved through different techniques and materials in sculpting.