Which of the Following Statements Is True of the Relationships

Which of the following statements is true of the relationships between substance use and various indicators of individual differences in personality variables?

A) Large-scale survey studies of substance use in the general population have strong correlations with most traditional personality traits.
B) Correlational studies of long-term substance use among young adults have shown a strong link between poor academic performances and substance use.
C) Various ways of measuring a factor called impulsivity can be correlated with rates of substance use in the general population.
D) Personality factors play a big role in whether someone decides to try alcohol or marijuana but a small role in whether that use develops into a serious problem.