What identifies the type of license plate in an inquiry on "specialized" license plates?

The correct answer is the Class Code, as it is specifically designed to provide detailed information about the type of specialized license plate in an inquiry. Class Codes are part of the vehicle registration data and categorize license plates based on their specific purpose or design, such as those issued for governmental, organizational, or veteran use. This classification allows law enforcement and other agencies to quickly identify not only the nature of the plate but also the associated privileges or restrictions that may apply to it.

In contrast, while the License Plate Number uniquely identifies a specific vehicle, it does not provide information about the type of specialized plate. The Owner's Name offers personal information about the vehicle's registrant but lacks relevance in categorizing the type of specialized plate. Similarly, the Vehicle Identification Number is crucial for identifying the vehicle itself but does not pertain to the classification of the license plate type. Thus, the Class Code is the essential data element for determining the kind of specialized license plate in inquiries.