Select the true statement about masonry materials.

Masonry materials, such as concrete, brick, and stone, are known for their inherent fire resistance. This characteristic means that they do not ignite easily, nor do they sustain combustion like more combustible materials such as wood. When exposed to high temperatures, masonry typically does not change its form, and it can withstand fire for a prolonged period without significant structural damage. This property makes masonry a favorable choice in construction, especially for fire-rated walls and fire separation in commercial and residential buildings.

The statement that masonry materials evolve poisonous gases when burned is misleading, as traditional masonry does not burn in the same way organic materials do. Instead, it may permit the release of certain substances at extreme temperatures, but these do not equate to burning or producing noxious fumes typical of combustible materials. Furthermore, masonry does not require special treatment to be fire-resistant, which is a feature inherent to the materials themselves, rather than a condition that must be applied. Overall, understanding the nature of masonry's fire resistance is crucial for fire safety protocols and building design.