Which of the following would be an excise tax?a sales tax that charges a percent of the unit’s price.an income tax that is a constant percent of a person’s income.an income tax that rises in...

Which of the following would be an excise tax?a sales tax that charges a percent of the unit’s price.an income tax that is a constant percent of a person’s income.an income tax that rises in percent as a person’s income rises.a tax that charges the same amount per unit sold.