Marcus: For most ethical dilemmas the journalist is likely to face, traditional journalistic ethics is clear, adequate, and essentially correct.
Marcus
Traditional journalistic ethics is clear, adequate, and essentially correct for most dilemmas. For example, once journalists have newsworthy information, they should publish it as soon as possible, with no delay for personal or professional interests.
Anita
Important information should of course go to the public; that is the job. But in the typical case, where a journalist has some information and is unsure whether it is yet important or newsworthy, this guidance is inadequate.
Evaluate
The stem asks for Anita's point, so the task is to find the claim her statements are built to support. She starts by agreeing with Marcus about the easy part: newsworthy information should be published. Then "But" marks her real contribution. Marcus's rule tells journalists what to do once they know something is newsworthy. Anita's observation is that the typical hard case comes earlier, when the journalist does not yet know whether the information is newsworthy, and there the rule says nothing useful.
Her point is narrow and precise. She does not say Marcus is wrong about everything, does not say traditional ethics is incorrect, and does not say no principle could ever help. She says the particular guidance Marcus offered does not help with the typical decision a journalist actually faces.
Goal
Find the answer that says Marcus's principle fails to help in the typical situation where a journalist must decide. The answer should match Anita's scope: this guidance, this kind of case, inadequate rather than wrong.