29. As a precaution against oil spills when topping off fuel tanks, you should __________.

The correct response is to notify the shore pumping station to reduce the pumping rate as tanks approach full capacity, which controls the flow at its source and prevents overflow. This aligns with regulations and industry best practices, unlike closing vents (which risks overpressure), closing valves (which creates back pressure), or filling to the expansion trunk (which leaves insufficient ullage).