Question: In the 3GPP File Data Reporting Management Service, when utilizing the HTTP GET method on the `/files` path to retrieve file information, what is the primary purpose of the `fileDataType` query parameter?
Option 1: To specify the maximum number of files to return in a single response.
Option 2: To indicate whether the files should be retrieved from a local or cloud storage.
Option 3: To select files of a specific data type (e.g., Performance, Trace, Analytics, Proprietary).
Option 4: None of the above.
Explanation: The primary purpose of `fileDataType` is to filter files by their data type, as evidenced by the enum values (Performance, Trace, Analytics, Proprietary) in the OpenAPI specification.