The most useful information for a risk practitioner when planning response activities after risk identification is the risk priorities. Risk priorities are the order or ranking of the risks based on their level of importance or urgency. Risk priorities help the risk practitioner to focus on the most critical risks, and allocate the resources and efforts accordingly. Risk priorities are usuallydetermined by using a combination of factors, such as the likelihood and impact of the risks, the risk appetite and tolerance of the organization, and the cost and benefit of the risk responses. Theother options are not as useful as the risk priorities, although they may provide some input or context for the risk response planning. The risk register is the document that records the details of all identified risks, but it does not necessarily indicate the risk priorities. The risk appetite is the amount and type of risk that the organization is willing to pursue, retain, or take, but it does not specify the risk priorities. The risk heat maps are graphical tools that display the risk level of each risk based on the likelihood and impact, but they do not show the risk priorities. References = Risk and Information Systems Control Study Manual, Chapter 4, Section 4.3.1, page 4-23.