Which of the following is the BEST way to clean a fire service ground ladder?

A. Wipe with a soft dry cloth, never expose to water.
B. Wipe with a cloth soaked in a solvent, such as kerosene or turpentine.
C. Wash with a pressure washer, stiff scrub brush, and automotive detergent.
D. Wash with a soft bristle brush and running water and use mild soap as needed.

D