Which fire extinguisher should you use on a fire that is fueled by a metal such as powdered aluminum
OA fire extinguisher marked with a blue circle containing the letter "C"
OA fire extinguisher marked with a black or white hexagon containing the letter "K"
OA fire extinguisher marked with a red square containing the letter "B"
OA fire extinguisher marked with a yellow, five-pointed star containing the letter "D"