Sampson and Laub's Research Following Up on the Gluecks' Cohort

Sampson and Laub's research following up on the Gluecks' cohort showed that

A) Most all delinquents in the original sample, by age seventy, had continued in a life of crime.
B) Most all delinquents, by age seventy, had desisted.
C) By age seventy, half the men were still committing crime, while the other half had desisted.
D) None of the delinquents in the original sample, by age seventy, were available to be interviewed.