The review committee’s determinations must be communicated to the last known address of the respondent through which method?

The correct method for communicating the review committee's determinations to the respondent is through certified mail. Certified mail provides a reliable way to ensure that the communication is documented and that the respondent has received the information. This method includes a receipt that confirms delivery, which is especially important in formal processes such as those involving regulatory bodies. By using certified mail, the review committee can maintain an official record of the communication and ensure that the respondent cannot dispute the receipt of the information, which is critical in legal and regulatory contexts. The use of certified mail is often required in various professional and legal standards to ensure due process and proper notification.