Which of the following rule directives will email [email protected] and [email protected] when the Mail Configuration rule is violated?

This choice, being an empty parenthesis, lacks the necessary `emailto` or `emailaddrs` directives and valid email addresses to configure email alerts within a Tripwire rule.

This choice, being an empty parenthesis, does not provide the correct syntax or content to define email recipients for Tripwire rule violations.

Assuming choice C represents a Tripwire rule directive such as `(rulename=Mail Configuration,[email protected],[email protected])` or `(rulename=Mail Configuration,[email protected],[email protected])`, this syntax correctly defines multiple recipients for email alerts. The `emailto` or `emailaddrs` directive within the rule's properties is used to specify who receives notifications when the associated rule is violated.

This choice, being an empty parenthesis, fails to include the proper directives and email addresses required for Tripwire to send notification emails.