Choice "D" is correct. An ethics ruling related to Rule 301 states that it is permissible for a member to disclose the name of a client without the client's consent unless the disclosure of the client's name results in the release of confidential information. The specific example given in the ethics ruling states that if a member's practice is limited to bankruptcy matters, the disclosure of a client's name suggests that the client may be experiencing financial difficulties, which could be confidential client information, and therefore a violation of client confidentiality.
Choice "a" is incorrect. A member is required to disclose confidential client information if necessary to comply with a validly issued subpoena or summons. Therefore, a disclosure of confidential client information to a court in connection with arbitration proceedings related to the client would not violate confidentiality rules.
Choice "b" is incorrect. A member is required to disclose confidential client information if necessary to comply with a validly issued subpoena or summons. Therefore, a disclosure of confidential client information to a professional liability insurance carrier after learning of a claim against the member would not violate confidentiality rules.
Choice "c" is incorrect. The use of a records retention agency to store client records does not violate confidentiality rules.