In the Republic, Plato introduced fivedifferent types of regimes. Which of the following statements are TRUE about those regimes? （多选题） A、 an aristocracy means rule by the best. B、 a timocracy means rule by the honourable. C、an oligarchy means rule by a few. D、 a democracy means rule by the ordinary people. E、 a tyranny means rule by one person (rule by a tyrant).