What indicates that a driver's license may be suspended?

Answer: B — Failure to pay traffic tickets

A driver's license may be suspended for various reasons, one of which includes failure to pay traffic tickets. When a driver receives a traffic ticket, they are legally required to address it either by paying the fine or appearing in court as instructed. Failure to fulfill these obligations can lead to legal consequences, including suspension of the driver’s license. This measure serves as a way to enforce compliance with traffic laws and ensure that drivers are responsible for their actions on the road. The other options do not contribute to the suspension of a driver's license. Not receiving mail from the Department of Motor Vehicles does not affect a driver's legal obligations; it is the responsibility of the driver to stay informed. Having no recent accidents is, in fact, a positive factor regarding a driver's record, and successfully passing a driving test demonstrates competency rather than any reason for suspension.