Final answer:
The statement 'I work well in groups of two or three people' indicates an improvement in the adolescent's social interaction, especially significant for someone with ADHD who faces challenges with social skills. The correct option is 2.
Step-by-step explanation:
When evaluating the plan of care for an adolescent with attention deficit hyperactive disorder (ADHD), the statement that should indicate an improvement in the adolescent's social interaction is "I work well in groups of two or three people."
This reflects enhanced social skills, which can be particularly significant for individuals with ADHD. This disorder often makes social interactions challenging because of symptoms such as inattention and impulsivity, so working well in groups shows positive progress in managing these symptoms.