Which of the following best describes a DQ query?

A DQ query specifically pertains to driver licenses, making it an essential tool for verifying driver-related information. The context of DQ, or Driver Query, involves accessing databases that provide real-time information concerning individuals' driving privileges, issues related to licenses, and associated records. This type of query is particularly important for law enforcement and other agencies that need to ascertain the legality and status of a driver's license during their investigations or interactions with the public.

The other options represent queries that focus on different aspects of vehicle or criminal records, which do not fall under the specific definition of a DQ query. Therefore, B is the best choice, as it clearly identifies the DQ query’s primary focus on driver licenses.