What does a registration sticker indicate when displayed on a license plate?

Answer: B — Valid registration for the vehicle

A registration sticker displayed on a license plate indicates that the vehicle has valid registration. This means that the vehicle is legally registered with the appropriate state authorities, which is a requirement for operating a vehicle on public roads. Valid registration confirms that the vehicle has been accounted for and that any necessary fees or taxes related to its registration have been paid. This ensures compliance with state laws regarding vehicle ownership. The other options relate to different aspects of vehicle operation. For instance, while safety inspection and insurance may be mandated in many jurisdictions, these are not directly indicated by the presence of a registration sticker. Additionally, the sticker does not denote ownership; rather, it confirms the vehicle's registration status within the state’s records. Thus, the key function of the registration sticker is to provide proof that the vehicle is properly registered.