Question 25 3 pts Which of the following statements about different tax rates over time is false? O A 5% increase in the tax rate for year 4 has less effect on NPV than a 5% increase in the tax rate for year 10. O A 5% increase in the tax rate for year 10 has less effect on NPV than a 5% increase in the tax rate for year 4. O Future tax rates used in NPV calculations are estimates because Congress can change tax rates. O A firm's future tax rate may change because of increases or decreases in future taxable income