Which of the following is NOT true regarding accountant-client privilege? OA. Most states provide that an accountant may be called to testify against their own client. B. Accountants can be called to testify against their own client in federal RICO cases. OC. Accountants cannot be called as a witness against a client in a court action. OD. Accountant-client privilege does not exist under federal law. OE. Only about 20 states recognize an accountant-client privilege