What Was the Greatest Problem That Emerged as a Classification

What was the greatest problem that emerged as a classification system for childhood disorders was being developed?

A) The same classification system that had been developed for adults was used for children.
B) Few childhood disorders had been identified.
C) The role of parents in the development of disordered behavior was overemphasized.
D) There was a hesitancy to identify childhood disorders as parents were likely to be blamed for any diagnosis given.