The correct answer is A. Mica.
Mica is a mineral that is often used in fire-fighting clothes because it is heat-resistant and non-flammable. It is also a good insulator, which
helps to protect firefighters from the heat of a fire.Asbestos is a mineral that was once used in fire-fighting clothes, but it is no longer used because it is a known carcinogen.
Talc is a mineral that is often used in cosmetics and other personal care products. It is not a good material for fire-fighting clothes because it is not heat-resistant and can catch fire.
Steatite is a mineral that is often used in ceramics and other products that require a high degree of heat resistance. It is not a good material for fire-fighting clothes because it is not as heat-resistant as mica.
In addition to mica, fire-fighting clothes are also made from other materials such as Nomex, Kevlar, and FR cotton. These materials are all heat-resistant and non-flammable, and they help to protect firefighters from the heat and flames of a fire.