A 14-Year-Old Boy Is Brought to the Office by His

A 14-year-old boy is brought to the office by his mother, who is concerned about his academic performance.  The patient has a history of attention-deficit hyperactivity disorder (ADHD) diagnosed at age 6.  He responded well to methylphenidate and continued stimulant medication through age 11.  Currently, he takes no medication.  His mother says, "He is less hyperactive at home and I no longer get phone calls from the school about his behavior, but adjusting to high school has been a challenge.  Even though he is very bright, he has difficulty keeping up with his schoolwork.  He often hands assignments in late and his work is sloppy.  Now that he is in high school and grades are important, I worry that his poor grades will limit his options for college."  The boy feels fine but says that "the teachers are boring and treat me unfairly.  I know the answer, but then get in trouble for not raising my hand."  The patient struggles, particularly in math, and is getting mostly Cs and Ds in his other classes.  He has several friends and was excited when he made the soccer team.  However, he decided to quit after receiving several warnings for being late to practice and forgetting his equipment.  His mother says that he is much less hyperactive at home and hopes that he has "outgrown" his ADHD by now.
Which of the following is the most appropriate statement in response to the mother's concerns?

A) He may have some mild ADHD symptoms but will likely outgrow the disorder by late adolescence.
B) His academic difficulty is likely due to factors other than ADHD.
C) I agree that your son's improvement in hyperactivity suggests that he has outgrown his ADHD.
D) Many children continue to have ADHD as adolescents and may benefit from treatment.
E) Starting high school is difficult for many kids; his performance should improve once he adjusts.