Final answer:
Entity A should disclose the potential asset as a contingent asset per IAS 37, as it is not probable that the economic benefits will inflow at the year-end and it should not be recognized on the balance sheet.
Step-by-step explanation:
In terms of IAS 37, Entity A should account for the contingent asset by disclosing it as a contingent asset. Since the inflow of economic benefits is not viewed as probable, the contingent asset should not be recognized on the balance sheet.
However, it is important to disclose the nature of the potential asset because it could have a significant impact on the financial decisions of the users of the financial statements. Detailed information about the nature of the contingent asset and an estimate of its financial effect should be disclosed unless such a disclosure can be expected to prejudice seriously the position of the entity in a dispute with other parties.