Final answer:
A patient stating they feel better after talking with family and friends indicates the use of emotion-focused coping strategies and successful intervention in managing stress.
Step-by-step explanation:
The behavior that indicates successful intervention for a patient with a diagnosis of Ineffective coping who is working towards demonstrating effective coping skills is a. States he feels better after talking with his family and friends. This behavior implies utilization of emotion-focused coping strategies, such as seeking social support, which are essential in managing stress when faced with uncontrollable stressors. The patient expressing feeling better after social interactions suggests a beneficial reappraisal of their stress and is in line with coping mechanisms that aim to reduce negative emotional responses associated with stress.