Under which of the following circumstances would a disclaimer of opinion on the entity's financial statements not be appropriate?
A. The entity refuses to permit its attorney to furnish information requested in an attorney letter.
B. The auditors are engaged after the date of the financial statements and are unable to observe physical inventories or apply alternative procedures to verify their balances.
C. The financial statements fail to contain adequate disclosure of related-party transactions.
D. The auditors are unable to determine the amounts associated with illegal acts committed by the entity's management.