Delinquent acts include which of the following?

Delinquent acts refer to behaviors that are prohibited by law and are typically engaged in by minors. Among the options listed, theft is considered a delinquent act because it is a criminal offense that violates the legal rights of others. Engaging in theft demonstrates a disregard for laws and societal norms, which is a primary characteristic of delinquency in the legal context.

Possession of cigarettes, breaking curfew, and truancy may be viewed as problematic behaviors or violations of local ordinances, but they do not typically rise to the level of criminal acts in the same way that theft does. Possession of cigarettes may be regulated but is often addressed through different avenues, like public health laws, rather than criminal penalties. Breaking curfew may reflect parental guidelines rather than legal statutes, and truancy, while often regulated, is usually not categorized as a criminal act in the same manner as theft. Thus, theft stands as the clearest example of a delinquent act from the options provided.