Support Having an efficient, attractive subway system makes good economic sense. ███ ███ ████ █████ ██ ████████ ███ ██████ █████ █████ ███ ████ ██████ ██████ ██ ████ █████ ████ ████████ ██████
The city should purchase new subway cars. This is because having an efficient subway system makes economic sense. And the city should always do what makes economic sense.
How do we know that new subway cars are necessary for an efficient subway system? Maybe an efficient system can be created with the existing set of cars. Consequently, to guarantee his conclusion, the author must assume that, if an efficient system is adopted, it will require new cars.
The conclusion drawn above follows █████████ ██ █████ ███ ██ ███ █████████ ██ ████████
The city should ██████ ██ ██ ██████████ ██████████ ██████ ███████
Cost-effective subway cars ███ ██ ████████ ████ ██ ██ █████████ ██████ ███████
Investment in new ██████ ████ █████ ██████ ████████ █████ ████ ████ ██ ███ █████ ██████████ ███████ ████ ██ ███ █████
New subway cars ███ ███████████ ███████████
New subway cars ███ ████████ ██ █████ ███ ███ ████ ██ ████ █ ██████ ██████ ████ ██ █████████ ███ ███████████