Ted owns Linens Inc. which is a supplier of linens and towels to hotels. Ted is about to deliver an order to the Elite Hotel Inc. for $35,000 but he has heard rumors that this hotel is in financial trouble and there are even suggestions of possible bankruptcy. Which of the following would be the best for Ted to use to possibly protect himself if Elite does go bankrupt? registering a general security agreement (GSA) registering a PMSI registering a chattel mortgage at the PPSA registering as a preferred creditor under The Bankrupcy Act registering a lien at the PPSA