Unsupported. The stimulus does not claim that reduced pollution must occur in order to justify higher taxes on gasoline. Instead, it claims that increasing taxes on gas to reflect environmental cost would cause to people pollute less.

Unsupported. Higher taxes on gas would cause people to pollute less, but we do not know that this is due to increased environmental awareness. Perhaps it is simply because gas prices are higher and so consumers can’t purchase as much gas as they did before.

Strongly supported. Gas usage leads to pollution, and increasing the price of gas to reflect environmental cost would lead people to pollute less. So we can conclude that people would purchase less gas, on average, if gas prices increase.

Unsupported. The cost of gas is a cost considered by most drivers when they are deciding how much to drive, but we do not know that it is the only cost.

Unsupported. It is not necessary for consumers to consider the cost of pollution in order to reduce pollution from gas. If gas prices increase and consumers purchase less gas merely due to these taxes, gas pollution will still decrease.