Which of the following are classified as juvenile status offenses?

Juvenile status offenses refer to behaviors that are considered unlawful only due to the person's age and would not be considered offenses if committed by an adult. The choice that includes truancy, possession of a firearm (in certain contexts, especially if done by minors), and unruly behavior clearly fits this definition. Truancy, for example, is the act of staying away from school without a valid reason, which is specific to minors. Similarly, unruly behavior can include actions that disrupt the order of schools or the community, which again would apply specifically to juveniles.

The other options involve behaviors that can be criminal regardless of age. Underage drinking and shoplifting can be both status offenses and criminal offenses; however, they more broadly fit into categories that can lead to criminal charges for both juveniles and adults. Vandalism and assault typically have broader implications under the law and involve clear criminal elements. Theft and drug possession also fall within general criminal law categories that include offenses applicable to individuals of all ages. Therefore, the behaviors listed in the correct choice highlight the specific nature of juvenile status offenses.