As the Discipline of Child Development Emerged in the United

As the discipline of child development emerged in the United States during the twentieth century,

A) child research institutes were established at a number of prominent universities
B) federal agencies that might have addressed children's social welfare problems were eliminated because of evidence that their efforts were ineffective
C) Sigmund Freud's psychoanalytic theory was refuted by research and became less influential
D) the general public became less interested in scientific approaches to understanding children