Critical Reasoning (CR) | Re: The heavy traffic in Masana is a growing drain on the city's economy

Why A is wrong? If the 20% of f the vehicles in the central business district are in transit from one side of the city to the other, taxing the drivers who enter the city's trafficked area could help reduce traffic in the district center

Why C is right? Even if congestion pricing helped to reduce traffic in other urban areas, NOT necessarily the strategy will work in Masana

I notice that in some CR questions some alternatives present some analogies,