What is the primary function of a wooden scaffold in masonry construction?

The primary function of a wooden scaffold in masonry construction is to support a masonry vault or arch while it is under construction. During the building process, especially with complex structures like arches and vaults, additional support is needed to hold the weight of the masonry until the materials have set and reached sufficient strength. The wooden scaffold acts as a temporary framework that ensures the shape and integrity of the masonry elements can be maintained while they are being assembled.

This function is crucial in masonry work as it allows builders to construct these architectural features safely and efficiently. Once the masonry has cured and is capable of withstanding its own weight, the scaffold can be removed. This process enables the effective construction of intricate designs that might otherwise collapse without proper support during the initial phases of assembly.

The other options do not accurately represent the primary use of wooden scaffolding in this context. For instance, while scaffolding does help support workers (choice A), it is not its main purpose in masonry construction. Aesthetic considerations (choice B) do not pertain to the functional role of scaffolding, as its primary aim is to provide structural support rather than visual appeal. Lastly, scaffolding is inherently temporary and not designed to serve as a permanent part of the structure (choice D).