Justin, a member, has been in public practice for 25 years. His firm does bookkeeping and financial statements for approximately 50 business clients and prepares approximately 75 business tax returns and 200 personal tax returns. Justin's firm has never had a malpractice claim. Justin is contemplating retirement and wants to sell his accounting practice. He has hired a professional practice sales firm to help him identify potential buyers and assist in the practice sale. What is Justin's firm required to do to protect its client's confidential information in this type of situation?

A) Justin's firm must receive written permission from each of his clients before disclosing any client confidential information to a prospective buyer.

B) Justin's firm is not allowed to disclose any client confidential information to a prospective buyer and thus the potential buyer must rely exclusively on representations made by Justin's firm.

C) A review of a member's accounting practice pursuant to a potential sale is allowed if the member takes appropriate precautions (such as a written agreement) so that the prospective buyer does not disclose any client confidential information obtained during his review of the practice.

D) None of the above