Johnson and Johnson (2003) Put Children Grades One to Nine

Johnson and Johnson (2003) put children grades one to nine through about a dozen of conflict resolution training in six schools. They found that

A) the result was a more peaceful student community and increased academic achievement.
B) when implemented with a whole student body, there was no difference in the students' daily conflicts
C) the conflicts continued because the students did not trust the researchers.
D) None of the above.