The History of Abnormal Psychology Makes It Clear That

The history of abnormal psychology makes it clear that

A) international efforts in dealing with mental disorders are doomed to failure because there is no agreement on the definition of "disorder."
B) we are no further today in understanding mental disorders than we were in the time of Pinel, Dix, and Beers.
C) the field can be profoundly changed and improved through individual effort.
D) more domestic and fewer international efforts are needed.