The correct answer is: a) Sandstone
Sandstone is a sedimentary rock composed of sand-sized grains of minerals, rock, or organic material. It is the most common type of sedimentary rock and the most widely used construction material. Sandstone is found in a variety of colors, including white, gray, red, brown, and black. It is also found in a variety of textures, from fine-grained to coarse-grained.
Bauxite is an aluminum ore that is found in tropical and subtropical regions. It is the main source of aluminum metal. Bauxite is a soft, earthy material that is usually red, brown, or yellow in color. It is found in large deposits in the ground.
Gypsum is a mineral that is used to make plaster, drywall, and other building materials. It is also
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