Which of the following statements is true?,

In my opinion, if we remove the cars in the center of the cities it will be a great change of adaptation, since it would cost us more to move, in addition almost all of us have a job far where we have to move through the center of the cities.
It is true that today we have a very high level of pollution and we must reduce it as much as possible, and on the other hand it has already prohibited a good part of the traffic in certain cities, for example, as in the case of Madrid or Oslo that they plan to center of their cities are completely pedestrian and only circulate taxis and buses.
I think we should not remove the cars from the city center, there are other solutions such as putting only electric cars or cars that do not pollute much.
We also have to keep in mind that companies that are in the center of cities pollute the same as cars even more.