Convicted Felons Are Most Likely to Have Which of the Following

In studying the childhood roots of psychopathy, researchers have revealed the following: A) Genetically related psychopathic personality traits in adolescence strongly predict antisocial behaviour in adulthood B) Children with psychopathic traits have abnormal prefrontal cortex responsiveness C) Canadian youth with pre-existing level of psychopathy are more likely to join youth gangs if they come from a neighbourhood residential instability D) All of the above

What have Jang, Vernon, and Livesley identified to be responsible for much of the variability in individual differences in antisocial behaviour? A) Hormonal imbalances B) Brain structure abnormalities C) Genetic transmission D) Exposure to teratogens