What Did Klein and Colleagues (2012) Find in Their Longitudinal

What did Klein and colleagues (2012) find in their longitudinal study of boys diagnosed with ADHD and a comparison group without ADHD?

A) They found that 74 percent of the ADHD group were employed, compared to 80 percent in the comparison group.
B) Males in the ADHD group were employed at jobs with lower status than those in the comparison group.
C) Most boys in the comparison group did not complete high school.
D) There were no differences in employment level or employment status between the ADHD group and the comparison group.