Answer:
Liability
Step-by-step explanation:
Assets are resources controlled by an entity as a result of a past event, for which future economic benefits flow to the entity.
Liabilities on the other hand are current obligations of an entity as a result of a past event for which future economic benefits are expected to flow our of the entity.
Therefore, when a company has a current obligation to make a future payment to their supplier due to a shipment of supplies that were received last week, the company would record this transaction with an increase to an asset account ( inventory or fixed asset for the item received) and a liability account due to the obligation to make future payments.