Final answer:
d) 120 days
Mary Anne has 120 days left to file an ethics complaint against a fellow REALTOR® for misrepresented advertising, starting from the day she became aware of the act.
Step-by-step explanation:
According to the National Association of REALTORS® (NAR) Code of Ethics and Standards of Practice, REALTORS® have 180 days from the time they knew or reasonably should have known of the act to file an ethics complaint. Considering Mary Anne learned of the incidence 60 days ago, this would leave her with 120 days remaining to file a complaint against the fellow REALTOR® for misrepresented advertising.