The correct answer is To document proof of adherence to security requirements.

This choice is correct because recording activities produces objective evidence that security policies and controls were applied and followed. Organizations rely on those records to demonstrate compliance to auditors regulators and customers and to meet contractual or legal obligations.

Cloud Audit Logs is the name of a logging service and not a reason to record activities. Naming a tool or product does not explain why records are kept and it does not replace the need to provide evidence of adherence to requirements.

To uncover potential vulnerabilities or weaknesses in the controls describes an outcome of testing analysis and proactive assessments. Finding vulnerabilities is useful but it is not the primary reason an organization records control activities for compliance and audit evidence.

To confirm that deployed controls are operating as intended refers to monitoring and validation and it can be supported by records. However the strongest answer highlights documentation of adherence to security requirements rather than simply confirming ongoing operation.

Full AWS Practitioner Certification Question