The correct answer is D) The hoist line should be slack before the basket or stretcher is hooked on. This is correct because having a slack hoist line allows the basket or stretcher to be easily and safely hooked onto the helicopter's rescue device. A tight line could make it difficult to secure the litter, increasing the risk of injury to the evacuated seaman. The other options are incorrect - A) stopping the ship with the wind off the beam is not necessary, B) the basket/stretcher should be allowed to gently touch the deck to avoid a dangerous drop, and C) securing the tending line beyond the helicopter blades is not required and could create additional hazards.