If a fire occurs in an electric cable, in which the inner layers of insulation, or the insulation covered by armor is burning, you should __________.

Correct Answer: Option D — all of the above

Burning cable insulation creates deep-seated fires that are difficult to reach. Securing power prevents further arcing, cutting the cable isolates the damaged section, and separating the ends prevents the fire from traveling along the cable run, ensuring the fire is fully contained and extinguished.