Which of the following actions is sanctioned by the Disciplinary Committee?

The selected answer describes an action that is explicitly prohibited and considered unethical, as it involves trading manipulations based on insider information. Such behavior undermines the integrity of the markets and can lead to significant penalties, including legal consequences. The Disciplinary Committee is responsible for maintaining fair trading practices and ensuring that all market participants operate within the established regulations. Therefore, any form of manipulation based on undisclosed information is strictly sanctioned.

The other actions listed involve varying degrees of neglect or procedural failure, rather than willful misconduct. Allowing unrestricted trading during non-business hours and forgetting to submit trading logs, while potentially problematic, generally indicate lapses in adherence to rules rather than outright violations involving unfair advantage. Accepting trades without verifying participants reflects a failure in due diligence but does not entail the same level of ethical violation as trading on insider information.