What class of fire is caused by an electrical short circuit?

The correct answer is based on the classification of fires according to the materials that fuel them. Class C fires specifically involve flammable gases and electrical equipment. An electrical short circuit can generate sparks or heat that ignites nearby combustible materials, categorizing it as a Class C fire due to the electrical component involved.

In terms of fire classification, Class A pertains to ordinary combustibles like wood and paper, while Class B covers flammable liquids like gasoline and oil. Class D involves combustible metals, which are also not relevant to electrical fires. Hence, the characteristics of Class C fires clearly align with those resulting from electrical issues, making it the appropriate choice in this context.