If you want to protect the urban environment, you must limit the development of private cars and give priority to the development of urban public transport. If you do not give priority to the development of urban public transport, you cannot restrict the development of private vehicles. Urban environmental protection and the improvement of urban residents' living standards should go hand in hand. Only the continuous improvement of the living standards of urban residents can develop the private car industry.
According to the above definition, which of the following options is correct?
Only when the living standards of urban residents improve, can urban environmental protection be truly implemented