Jeffrey Is Serving a 25-Year Prison Term for Conspiracy to Commit

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

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