The correct answer is: D. High tension steel
High tension steel is a type of steel that is used in reinforced concrete construction. It is a high-strength steel that is used to reinforce concrete beams and columns. High tension steel is typically made from a combination of iron and carbon, and it is often coated with a protective layer to prevent corrosion.
Stainless steel is a type of steel that is resistant to corrosion. It is made from a combination of iron, chromium, and other metals. Stainless steel is often used in kitchen appliances, sinks, and other applications where it will be exposed to water or other corrosive materials.
Mild steel is a type of steel that is not as strong as high tension steel, but it is more ductile. Mild steel is often used in applications where it needs to be able to bend or deform without breaking.
High carbon steel is a type of steel that is high in carbon content. This makes it a very strong steel, but it also makes it more brittle. High carbon steel is often used in applications where it needs to be able to withstand a lot of force, such as in tools and machinery.
In reinforced concrete construction, high tension steel is used to reinforce concrete beams and columns. The high strength of high tension steel allows it to carry a lot of weight, and the protective coating prevents it from corroding. This makes high tension steel an ideal material for use in reinforced concrete construction.