7.The auditors obtain audit evidence for accounts receivable by using positive or negative confirmation requests. Under which of the following circumstances might the negative form of the accounts receivable confirmation be useful?

(a) The combination of inherent risk and control risk is high.

(b) The auditors believe that recipients of the requests are unlikely to give them consideration.

(c) A substantial number of accounts are in disputes.

(d)A low exception rate is expected.