TheAICP Code of Ethics(2022), Section E, Procedure 1, states, “A charge of misconduct may be filed by any person,” and Procedure 2 allows the complainant to “request confidentiality, which the Ethics Officer will honor to the extent possible.” Option C (may request confidentiality) is correct. Options A and B (APA or AICP membership) are incorrect, as anyone can file a complaint. Option D (filed anonymously) is not allowed, as the Ethics Officer needs the complainant’s identity, though it can be kept confidential. TheCPC Study Manual(2024) confirms, “Complainants may request confidentiality when filing a misconduct charge, but anonymous filings are not permitted,” supporting option C.