MCQ: In the context of data exfiltration, what role do covert channels play in evading detection?

• A. Covert channels have no impact on data exfiltration.
• B. Covert channels enhance the visibility of data exfiltration activities.
• C. By providing stealthy communication methods that evade detection while transferring sensitive data.
• D. Covert channels are only relevant for internal communication within organizations.