Answer:
Constitutional Government is a regime type that is characterized by the fact that "Government" operates within a set of legal and institutional constraints that both limits its power and protects the individual liberty of the citizen of a polity.
dictatorship
government in which one person or a small group holds complete authority.
I do believe it would be B. Theodore Roosevelt. <span />
I think that the answer is A. (im not so sure)
I hope this helps :) (im so sorry if this is wrong)