Analyze Figure 15

Analyze Figure 15.15In the text and the text associated with this experiment. In this study, dopamine _____________________________________________.

A) is administered to the rat via a catheter after the rat presses a lever
B) is only released upon cocaine adminstration
C) increases before cocaine administration in trained animals
D) is given to the rat in the form of a dietary L-dopa supplement
E) None of the above are accurate statements.