Which of the following is the PRIMARY reason for an organization to monitor and review...

 Monitoring and Reviewing IT-Related Risk:

Periodic monitoring and reviewing of IT-related risks are essential to ensure that the organization can adapt to both internal and external changes that might affect risk levels.

 Primary Reason:

The primary reason for this ongoing process is to address changes in external (e.g., regulatory changes, market conditions) and internal (e.g., organizational changes, new IT deployments) risk factors.

Risks are dynamic and can evolve due to various factors. Therefore, continuous monitoring helps in identifying new risks and changes in existing risks, ensuring that they are managed appropriately.

 Comparison of Options:

B ensuring risk is managed within acceptable limits is a significant outcome of monitoring but is not the primary driver for periodic review.

C facilitating the identification and replacement of legacy IT assets is an operational concern but does not encompass the broader scope of risk management.

Addressing changes in risk factors is a proactive approach that enables an organization to stay ahead of potential issues and maintain an effective risk management posture.

 Conclusion:

Thus, the primary reason for an organization to monitor and review IT-related risk periodically is to address changes in external and internal risk factors.