Final answer:
The best intervention for a 16-year-old's need for autonomy is providing opportunities to discuss concerns without parents present, respecting their individuality and privacy.
Step-by-step explanation:
The intervention that best demonstrates the nurse's sensitivity to a 16-year-old's appropriate need for autonomy, according to Erikson's theory of psychosocial development, is C) Provides opportunity to discuss concerns without presence of parents. This intervention respects the adolescent's growing need for independence and privacy, allowing the young person to express themselves freely and confidentially, which is crucial during this developmental stage. The main task for an adolescent, as per Erikson's model, is developing a sense of identity, which includes increased feelings of independence and individuality. Respecting patient privacy and autonomy supports this developmental need and fosters trust between healthcare professionals and teenage patients.