The correct answer is C) should arrange to have a B-II extinguisher placed in the lower pump room. The reasoning is that pump rooms on tankships are considered hazardous areas that require portable fire extinguishers to be installed. Regulations state that at least one B-II type extinguisher should be placed near the exit of the pump room, which makes option A correct. Options B and D are incorrect because they do not comply with the regulations. Sand cannot be substituted for required fire extinguishers, and pump rooms are not exempt from the requirement to have portable extinguishers present.