Although Hull Believed in the Importance of Environmental Reinforcements for Learning

Although Hull believed in the importance of environmental reinforcements for learning, he

A) also believed that the internal state of the organism was important.
B) felt it was morally wrong to use environmental reinforcements to shape behavior.
C) chose not to study learning behavior.
D) believed that environmental reinforcements were unimportant in determining what behaviors would actually be performed.
E) believed none of these.