When creating a problem record, it is essential to include information that can help in diagnosing and resolving the problem. One key piece of information is the associated configuration items (CIs), as this helps to identify which components are affected and to trace relationships between incidents and problems. This is applicable for both reactive (responding to incidents) and proactive (preventing future incidents) problem management.
Configuration Items (CIs): These are the building blocks of IT services, and understanding which CIs are involved in a problem is crucial for identifying potential root causes and for future reference.
Option C ("Associated configuration items") is the correct answer because documenting the CIs involved helps in the root cause analysis and tracking of problems.