What option is taken when the Control effectiveness is marked as 'Effective'?

When the Control effectiveness is marked as 'Effective,' it indicates that the control is functioning as intended and adequately mitigating the associated risks. In this scenario, no immediate action is required to address any deficiencies, as the control is meeting its objectives. Therefore, the appropriate response is for no action to be taken, allowing the organization to maintain its current risk posture.

The other options imply actions or changes that would be necessary only if the control was not effective. For instance, creating an issue would suggest a problem that needs addressing, while updating a Control Failure Factor would be relevant if there was a recognition of control failure. Likewise, a policy review would be necessary only if the existing controls were inadequate. Since the control’s effectiveness is confirmed, these actions are not warranted.