What Does Article 4 of the NAR Code of Ethics

What does Article 4 of the NAR Code of Ethics require agents and brokers to do if they want to sell their own properties?

A) appoint another agent to watch over the process to ensure they do not abuse their status to gain an advantage over the buyer
B) reveal their ownership in writing to all releveant parties
C) tell the buyer at some time before the transaction is completed
D) ensure all agreements are written in clear and understandable language
E) the NAR code of ethics prescribes no rules for agents selling their own properties