Which of the following accurately describes a public transit planning best case discussed in class? Group of answer choices Copenhagen was the first city to introduce bus rapid transit (BRT) as the central component of its "Donut Plan" Zurich invested in its tram and trolleybus system, and utilizes "green waves" at traffic lights to reducing delay time Curitiba constructed its MRT subway system, linking planned new towns with its high-density downtown Bogot was the first city in the world to implement a road pricing system in the 1970s, later replaced by its ERP All of the above