Answer:
The primary concern about children with attention-deficit/hyperactivity disorder (ADHD) is that:
A. ADHD interferes with learning in school.
Step-by-step explanation:
ADHD has characteristic symptoms: difficulty to focus, difficult to stay still, and impulsivity. It comes as no surprise that children with this mental disorder tend to have problems at school. Their performance in educational environments is poorer when compared to children who do not display those symptoms. The disorder not only interferes with their ability to focus in class, but it also affects their behavior, which may lead to other types of problems.
It is important to keep in mind that about 5% of adults are also affected by ADHD, which has an impact on their performance at work.