The correct answer is A) The use of a gland exhauster fan. The gland exhauster fan plays a crucial role in directing the leak-off steam from the low-pressure propulsion turbine to pass through the gland exhaust condenser. The fan creates a negative pressure in the gland exhaust system, which helps to draw the leak-off steam from the turbine glands and ensure it is properly condensed and removed from the system. The other options are incorrect because: B) Steam pressure from the low-pressure turbine alone is not sufficient to direct the leak-off steam; C) Steam pressure from the high-pressure turbine is not relevant to the low-pressure turbine's gland leak-off system; and D) Compressed air in the air pilot is not involved in the gland leak-off steam handling process.