The correct answer is:
It allows him to separate his emotions from the events.
In Monster, a novel by Walter Dean Myers (1999), Steve Harmon, an African American teenager, depicts the story of his trial, as well as James King´s, for felony murder in the state of New York.
16-year-old Steve Harmon writes about the trial and constantly battles others people's perceptions of himself with his conviction of his own goodness.