Although Criminal Offenders Are People Predisposed to Crime, They Are

Although criminal offenders are people predisposed to crime, they are not robots who commit crime without restraint. According to the general theory of crime, change in the frequency of criminal activity is a function of ______.

A) change in one's level of impulsivity
B) change in one's level of self-control
C) change in criminal opportunity
D) change in environmental conditions