The correct answer is B) The temperature of the sea water entering the cooler will be higher when operating with the distiller on line. When the distiller is in operation, it generates heat to produce freshwater from seawater. This increased temperature of the seawater exiting the distiller will result in a higher temperature of the seawater entering the lube oil cooler, as the cooler utilizes this seawater to remove heat from the lube oil. The other options are incorrect because: A) The temperature of the lube oil entering the cooler would decrease regardless of the distiller being on or off, as that is the purpose of the cooler. C) The pressure of the lube oil to the cooler would not be affected by the distiller operation. D) The pressure of the seawater to the lube oil cooler would also not be affected by the distiller operation.