Which of the following is NOT a classification for fire?

The classification for fire types follows a specific system used to categorize fires based on the materials that are burning. The classes include:

• Class A fires involve ordinary combustibles such as wood, paper, and cloth.

• Class B fires involve flammable liquids and gases, such as gasoline and oil.

• Class C fires are related to energized electrical equipment.

• Class D fires involve combustible metals.

The correct choice highlights that "C-current" does not align with the established categories of fire classification. Instead, Class C specifically addresses electrical fires, not a concept associated with "current" as described in the answer. The other options, while they may have misleading or unusual representations, align more closely with recognized classifications or themes in fire types than "C-current," which deviates from the nomenclature established in fire safety training.