Asales tax is a type of progressive tax indirect tax proportional tax direct tax

Indirect.

This is because indirect tax is a tax on expenditure, whereas direct tax is a tax on income and wealth. Progressive taxes tax the rich more than the poor, but a sales tax charges everyone the same, therefore it is a regressive tax instead, as it takes up more of the poor's income. As it is not a choice, the answer is then an indirect tax.