The Major Contribution of Emil Kraepelin Was ______

Multiple Choice

The major contribution of Emil Kraepelin was ______.

A) the development of a classification system in which the current diagnostic systems are rooted
B) the discovery that early childhood environment plays a crucial role in the development of a healthy personality
C) the discovery of the bacterium causing syphilis
D) the development of "moral therapy," in which humane treatment and a relaxed environment were used to help restore mental health