The correct answer is B) unhook the litter from the winch cable while the patient is being loaded. This is the correct action because it removes the winch cable as a potential hazard while the patient is being transferred into the litter. Having the litter still connected to the cable could create a tripping hazard or restrict the movement needed to safely load the patient. Unhooking the litter allows the medical team to focus solely on the patient transfer without having to manage the winch cable. The other options are incorrect because: A) verifying the litter connection is not the priority during the patient transfer; C) securing the cable to the deck does not eliminate the tripping hazard; and D) securing the litter firmly is not the immediate concern compared to removing the cable connection.