Sureties and guarantors may be released from their promises if the parties to the debt contract make a _________ modification to the terms without the consent of the surety or guarantor. In addition, if the creditor
_________the collateral to the debtor or ____________ the value of the collateral, the obligation of the surety or guarantor may be ________. Finally, any_______________ of the principal obligation by the debtor will ____________the surety or guarantor from the obligation.