All of the following have been identified as problems with diagnosis of and treatment for ADHD EXCEPT:

A) high rates of misdiagnosis.
B) the overuse of medication to treat ADHD.
C) the diagnosis of typical behavior as ADHD.
D) helpful treatment for children who are difficult to parent or teach due to ADHD.

All of the other options have been identified as problems with the diagnosis and treatment of ADHD, but option D suggests that there is helpful treatment available for children with ADHD who are difficult to parent or teach. While there may be controversies around the use of medication and the risk of misdiagnosis, it is generally agreed upon that effective treatment for ADHD is important.