What are the choices available under "Actions" in a Content Examination definition?

The correct choice for the available actions under "Actions" in a Content Examination definition is indeed the combination of Hold, Bounce, and Delete.

In the context of email security, these actions are crucial for managing the flow of content based on defined criteria. Holding an email allows for a temporary stop while it is analyzed further, which is important for investigating potential threats or unwanted content without outright discarding the message immediately. Bouncing serves as a method to reject an email back to the original sender, often used in response to spam or malicious content. Deleting an email is the most definitive action, used to remove unwanted or harmful content from the system entirely.

Each of these actions serves a distinct purpose in email security management, aligning with best practices to ensure that emails are handled appropriately based on their content. Consequently, they form an integral part of configuring effective content examination policies within a security framework.