Regarding the Relationship Between Oppositional Defiant Disorder (ODD)and Conduct Disorder

Regarding the relationship between oppositional defiant disorder (ODD) and conduct disorder (CD) , the findings of the Developmental Trends study suggest that

A) the vast majority of boys who meet the criteria for CD also meet the criteria for ODD.
B) the vast majority of boys with ODD progress to CD.
C) only a small minority of boys with ODD meet the criteria for ODD two years later.
D) CD preceded ODD in most cases.