In Large Part,the Formal Organization of Clinical Psychology Shortly After

In large part,the formal organization of clinical psychology shortly after World War II occurred for what reason?

A) Industrial psychology was not proving to be useful for treating mental health problems.
B) There were too many applied psychologists.
C) The need for mental health services and trained professionals became a national priority because of the increase in psychiatric casualties after WWII.
D) The American Psychological Association insisted that clinical psychology was not a profession unless there was a formal training and credentialing program.