The correct answer is granite. Granite is a type of igneous rock that is formed when magma cools and crystallizes. It is a hard, durable rock that is often used in construction. Granite is also a popular choice for countertops and other interior surfaces.
Shale is a type of sedimentary rock that is formed when mud or silt is compacted and cemented together. It is a relatively soft rock that is not often used in construction.
Sandstone is a type of sedimentary rock that is formed when sand grains are compacted and cemented together. It is a harder rock than shale, but it is not as strong as granite. Sandstone is often used in construction, but it is not as popular as granite.
Gypsum is a type of sedimentary rock that is formed when calcium sulfate is precipitated from water. It is a soft rock that is not often used in construction.
Granite is the best choice for building stones because it is a hard, durable rock that is resistant to weathering and erosion. It is also a beautiful rock that can be used to create a variety of architectural styles.