After the payment order becomes conclusive, either with failing to raise an objection or upon the final decision of the court resolving the objection, the creditor may request attachment from the agency. Attachment is the legal seizure of the assets and rights belonging to the debtor to be liquidated in a compulsory enforcement procedure, whose proceeds are then paid to the creditor. Since it is not a matter of collective enforcement, the attachment must be limited to assets and rights su icient for the credit claimed. The correct answer is D.