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 used in agriculture and in the manufacture of paper and other products. Gypsum is a white or colorless mineral that is found in sedimentary rocks. It is soft and easily scratched.
Talc is a mineral that is used in cosmetics, talcum powder, and other products. It is also used in the manufacture of paper, rubber, and other products. Talc is a soft, white mineral that is found in metamorphic rocks. It is easily scratched and has a greasy feel.
Sandstone is the most common type of sedimentary rock and the most widely used construction material. It 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. Sandstone is a good choice for construction because it is strong, durable, and easy to work with. It is also relatively inexpensive.