Which report indicates the initial results of a claim's investigation?

The Field Report is the correct choice because it typically provides the earliest findings from the investigation of a claim. This report often contains initial observations, details about the accident or incident, and any pertinent information gathered at the scene or through initial interviews. It serves as a preliminary documentation of the claim's status and is critical for determining the next steps in the claims process.

The other reports serve different functions. The Interim Report is often a mid-point or progress report that outlines findings at a certain stage but is not necessarily the very first reporting of initial results. The Full Report encompasses a comprehensive overview of the entire investigation, including detailed analysis and the final determination, which occurs after the Field Report. A Claims Report is broader in scope and can include various aspects of the claims process, but it does not specifically focus on the initial results of the investigation.