The best answer is C. real-time monitoring of risk events and control exceptions. Real-time monitoring is a process of continuously collecting and analyzing data and information on the occurrence and impact of risk events and control exceptions, using automated tools and techniques, such as dashboards, alerts, or analytics12. Real-time monitoring can help to identify and respond to the risks and the issues as soon as they happen, and to prevent or mitigate the potential consequences. Real-time monitoring can also help to improve the efficiency and effectiveness of the risk management process, and to provide timely and accurate reporting and communication to the stakeholders. Real-time monitoring is the best answer, because itrepresents a leading-edge practice in risk monitoring, as it leverages the latest technology and innovation, and it enables a proactive and agile approach to risk management. The other options are not the best answer, although they may be useful or necessary for risk monitoring. Procedures to monitor the operation of controls are a part of the risk monitoring process, but they are not the same as or a substitute for real-time monitoring, as they may not be able to capture and address the risks and the issues in a timely manner, and they may rely on manual or periodic methods, rather than automated or continuous ones. A tool for monitoring critical activities and controls is a resource or a device that supports the risk monitoring process, but it is not the same as or a substitute for real-time monitoring, as it may not be able to collect and analyze the data and information in real time, and it may depend on the quality and reliability of the tool. Monitoring activities for all critical assets is a scope or a coverage of the risk monitoring process, but it is not the same as or a substitute for real-time monitoring, as it may not be able to identify and respond to the risks and the issues as soon as they happen, and it may require a lot of resources and efforts. Performing a controls assessment is a process of evaluating and testing the design and operation of the controls, but it is not the same as or a substitute for real-time monitoring, as it may not be able to detect and report the risks and the issues in real time, and it may follow a predefined or scheduled plan, ratherthan a dynamic or adaptive one. References = Real-Time Risk Monitoring - ISACA, Real-Time Risk Monitoring: A Case Study - ISACA