Which statement best describes a proportional tax?(1 point)

Responses

a tax on consumable goods or services such as gasoline
a tax on consumable goods or services such as gasoline

a tax where all levels of yearly income are taxed at the same rate
a tax where all levels of yearly income are taxed at the same rate

a tax where lower-income earners are charged at a higher rate
a tax where lower-income earners are charged at a higher rate

a tax that places levels of income into brackets

a tax that places levels of income into brackets