Of the Cohort Studies Listed in the Text, One of the Most

Of the cohort studies listed in the text, one of the most important findings is that:

A) people with a history of violence and mental disease are less likely to kill when they use a knife or other weapon.
B) adult offending and juvenile offending are not correlated.
C) persistent juvenile offending is correlated with poor education and less job satisfaction as an adult.
D) persistent juvenile offenders are most likely to continue their criminal careers as adults.