Tom Is Serving a 25-Year Prison Term for Armed Robbery

Tom is serving a 25-year prison term for armed robbery. While incarcerated, he is diagnosed with antisocial personality disorder. The prison psychiatrist prescribes barbiturates for Tom. What is the most likely reason for the psychiatrist's decision to prescribe barbiturates?

A) to decrease Tom's impulsivity
B) to treat Tom's depression
C) to decrease Tom's aggressive behavior
D) to help Tom learn to empathize with others