Which of the Following Statements Regarding Class Size Is Not

Which of the following statements regarding class size is not true?

A) Children who were in smaller classes from kindergarten through third grade performed better than their peers who had been in larger classes.
B) Children who were in smaller classes from kindergarten through third grade performed better than their peers who had been in larger classes,even after entering regular-size classrooms in fourth grade.
C) Teacher morale is higher in smaller class settings.
D) Small class size in poor districts has no effect on moving children from below average in reading and math to above average.