Based on the Longitudinal Study by Lewinsohn and His Colleagues

Based on the longitudinal study by Lewinsohn and his colleagues, which of the following statements regarding suicidal ideation among adolescents is accurate?

A) About 7 percent of adolescents had a history of suicidal ideation.
B) Suicidal ideation was more prevalent in adolescent men than in adolescent women.
C) The frequency of suicidal ideation was unrelated to future suicidal attempts.
D) Mild and relatively infrequent suicidal thoughts increased the risk for a suicide attempt.