The correct answer is D) use absorbent material, such as sawdust, to clean up the spill. When the scuppers are plugged and an oil spill occurs on deck, the proper procedure is to use absorbent material, like sawdust, to clean up the spill. This is because discharging the fuel overboard, even with the scuppers open, would be a violation of environmental regulations that prohibit the discharge of oil into navigable waters. Using absorbent materials to contain and clean up the spill is the appropriate and legal method to handle the situation. The other options are incorrect because they would involve discharging the oil overboard, which is not permitted. Washing the fuel overboard with water or solvents would still result in an illegal discharge, and simply wiping the area dry without using absorbent materials would leave behind residual oil that could later be washed overboard.