Which of the Following Is True About Gottfredson and Hirschi's

Which of the following is true about Gottfredson and Hirschi's general theory of crime?

A) Self-control is a result of the biological predispositions we are born with.
B) Self-control explains why people who have conduct problems in childhood also later engage in delinquency and then in adult crime.
C) Self-control is not a stable trait, but a factor that comes and goes throughout one's life, thus explaining why people commit crimes at one time but not another.
D) Self-control is formed or not formed in the teenage years, which is why most delinquency occurs during adolescence.