Comprehensive and Detailed Explanation:
An issue management plan provides a structured method for identifying, assigning responsibility for, resolving, and monitoring problems that occur during a project. CMP professionals use issue management processes to maintain control over event operations.
Unlike risks, which are potential future problems, issues are problems that have already occurred or require active resolution. An issue management plan helps teams document the situation, determine ownership, establish corrective actions, and track progress until resolution.
A marketing calendar supports promotional activities, a registration report tracks attendance information, and a venue checklist supports site preparation.
Effective project management requires the ability to respond quickly when challenges arise. A documented issue management approach improves communication, accountability, and decision-making.
Therefore, an issue management plan is the correct answer because the planner is establishing a structured process for managing active project problems.