Answer:
b. Jackson's theory that the nervous system is organized as a hierarchy.
Step-by-step explanation:
Hierarchical Re-representation Theory, created by J. Hughlings Jackson, says that each functional group of the Nervosi System (motricity, for example) would be organized vertically at rising levels of increasing complexity. Thus, levels immediately below a site of injury would assume, albeit imperfectly. This theory applies well to the situation shown in the question above, where a lower level of Hal's nervous system took over his behavior and made him an aggressive person.