After entering a large number of low-risk scenarios into the risk register, it is most important for the risk practitioner to analyze changes to aggregate risk. Aggregate risk is the total amount and type of risk that the organization faces or accepts, considering all the individual and interrelated risk scenarios. Aggregate risk helps to measure and monitor the organization's risk profile, risk appetite, and risk performance, and to support the risk decision-making and reporting processes. Analyzing changes to aggregate risk is important after entering a large number of low-risk scenarios, because even though the individual risk scenarios may have low likelihood or impact, they may still have a significant cumulative or combined effect on the organization's objectives or operations. Analyzing changes to aggregate risk also helps to identify and prioritize the most critical or relevant risk scenarios, and to select the most appropriate and effective risk responses and strategies. The other options are not as important as analyzing changes to aggregate risk, although they may be part of or derived from the risk analysis process. Preparing a follow-up risk assessment, recommending acceptance of the risk scenarios, and reconfirming risk tolerance levels are all activities that can help to implement or update the risk management process, but they are not the most important after entering a large number of low-risk scenarios. References = Risk and Information Systems Control Study Manual, Chapter 4, Section 4.3.1, page 4-25.