Researchers have found all of the following to be true,except
A-The use of stimulant medication in children diagnosed with ADHD has been associated with increased risk of substance abuse in later adulthood
B-As many as two-thirds of children with ADHD experience sleep disturbances of periodic limb movement disorder or restless legs syndrome
C-Increased television exposure at ages one to three years was associated with attention problems at age seven
D-Adults treated in childhood for ADHD were less likely to experience substance abuse