What system alerts agents before the time of policy renewal?

The correct choice is a Suspense/Diary System. This system is specifically designed to help insurance agents keep track of tasks and follow-ups related to their clients' policies. As a policy approaches its renewal date, the Suspense/Diary System will generate alerts or reminders for agents, prompting them to reach out to clients to discuss renewal options, review changes in coverage, or update personal information. This feature is critical for ensuring that policies do not lapse and that agents can maintain continuous communication with their clients.

In contrast, the other options serve different functions: a Claims Management System deals with processing and managing claims, a Policy Review System focuses on assessing the adequacy of coverage, and a Risk Management System evaluates and mitigates risks for clients. None of these systems are primarily intended for tracking policy renewal timelines like the Suspense/Diary System.