Final answer:
Kenya is using the Strengths Based Theory in her practice with homeless teenagers in the community, leveraging their own strengths to help them handle their problems.
Step-by-step explanation:
Kenya, the community health nurse working with homeless teenagers in an inner-city community, is using a nursing practice that focuses on identifying positive aspects of her clients' lives and leveraging their own strengths to help them navigate their challenges. The middle range theory Kenya is employing is d. Strengths based theory. This approach appreciates the inherent capabilities and resources that individuals bring to the table and uses those assets as a foundation for coping with difficulties and fostering psychological empowerment.