Which of the follow are correct in terms of temperament?

A) Children who had a difficult temperament at 3 to 5 years of age were usually well-adjusted as young adults.
B) Boys with a difficult temperament in childhood are less likely as adults to continue their formal education.
C) Girls with difficult temperaments in childhood are more likely to experience marital conflict as adults.
D) Boys with a difficult temperament in childhood are less likely as adults to continue their formal education,and girls with a difficult temperament in childhood are more likely to experience marital conflict as adults.

Research suggests that boys with difficult temperaments are more likely to have academic difficulties and drop out of school, while girls with difficult temperaments are more likely to have problems with romantic relationships and experience marital conflict. Option A is incorrect, as research shows that difficult temperament in childhood can predict adjustment difficulties in adolescence and adulthood. Option B is partly correct but does not mention the link between difficult temperament and academic difficulties. Option C is partly correct but only applies to girls and does not touch on the link between difficult temperament and education.