题目选项分析

The government should stop permitting tobacco companies to subtract advertising expenses from their revenues in calculating taxable income. Tobacco companies would then have to pay more taxes. As a consequence, they would raise the prices of their products and this price increase would raise the prices of their products and this price increase would discourage tobacco use.

Which of the following is an additional premise required by the argument above?

【选项】The increase in taxes paid by tobacco companies would be equal to the additional income generated by raising prices