The PMHNP is evaluating a new 17-year-old client with a history of delinquent behavior, including a recent arrest for vandalism. The nurse practitioner suspects conduct disorder based on the client's history and current presentation. According to Erikson, such behavior is a result of the failure to resolve which psychosocial developmental stage?

Choice A reason: Industry vs. Inferiority (ages 6–12) involves mastery of skills and competence. While related to behavior, the delinquent acts at 17 reflect identity formation issues, not academic competence. Choice B reason: Intimacy vs. Isolation occurs in early adulthood (18–40), which is beyond this adolescent’s current stage. Choice C reason: Identity vs. Role Confusion (adolescence, 12–18 years) involves development of a coherent sense of self. Failure to achieve identity can result in role confusion, risk-taking, and antisocial behaviors, aligning with conduct disorder manifestations. Choice D reason: Initiative vs. Guilt occurs in early childhood (3–5 years) and does not directly account for adolescent delinquent behavior.