Describe asbestos as a fiber. What is its use? Why do people who work in construction and contracting have to be cautious about it? a) Asbestos is a mineral fiber used for insulation and fireproofing; workers need caution due to its carcinogenic properties b) Asbestos is a synthetic fiber used in textiles; workers need caution due to its allergic reactions c) Asbestos is a plant-based fiber used in paper production; workers need caution due to its flammability d) Asbestos is a metallic fiber used in electrical wiring; workers need caution due to its conductivity