The research question "Are states people too, and if so, do they possess the same agencies and cognitions as human people?" primarily fits into B. Ontology.
Ontology deals with the nature of being and existence, particularly regarding the categories of being and their relations. In this case, the question is exploring the nature of states (as entities) and their potential similarities to human beings in terms of agency and cognition, which pertains to the ontological status of states in relation to individuals.