Answer:
The school psychologist informs them that some research indicates that ADD/ADHD is related to a delay in neural development.
Step-by-step explanation:
Attention Deficit Hyperactivity Disorder (ADHD) is a neurobiological, genetic disorder that appears in childhood and often accompanies the individual throughout his or her life. It is characterized by symptoms of inattention, restlessness and impulsiveness. It is sometimes called ADD, ADHD, or AD / HD. The symptoms of ADD / ADHD are believed to be related to a delay in neural development. It is likely that the psychologist will explain the illness to Frank's parents in this way.